Just out of curiousity, what DPS are you doing and under what context? It helps to gauge where you are at and what might be holding you back if I can tell just how far off target you are currently. Other than that I can just offer the generalized advice for a Balance Druid without a decent understanding of what will actually help you most. So here comes the monster reply with a little of everything.
Self buffed against a target dummy I'd approximate your DPS at about 5995. Approximations were made on how much average crit rating you'd have out of the on use trinket and also full stack of the stacking trinket adding to spellpower. This approximation was made using the most recent version (100205, yymmdd) of WrathCalcs (Moonkin DPS spreadsheet). WrathCalcs and the EJ Moonkin guide can be found at: http://elitistjerks.com/f47/t66856-m...dated_3_3_2_a/
P.S. Clearly I need to roll horde to get my trinket to drop cause Muradin's crew always brings his spyglass too him instead of leaving it in the chest for me.
Your spec currently over prioritizes mana efficiency beyond what you would still need. The only talent points I would consider misplaced are those spent in Intensity. A retribution paladin alone providing you with Kings, Heart of the Crusader debuff, and Replenishment increases your estimated time until out of mana up to 15 minutes (without Intensity). It's well past time to drop those two talent points since synergies will easily push up your efficiency. I would recommend throwing one point into Typhoon for it's situational usefulness like Deathbringer Saurfang. The other talent point you can stick into Gale Winds for a little better AoE DPS or into Genesis/Brambles for a very minor single target DPS improvement (Genesis and Brambles are the two weakest talents overall so most will take Gale Winds just to not suck so bad on AoE trash). The second point in Gale Winds would only come if you ran with higher hit rating such that you could drop one point in Balance of Power. But again at this point we are dealing with optional talents.
Your major glyphs are all correct. Moonfire, Starfire, and Insect Swarm are the top three DPS glyphs at all levels of progression. You shouldn't completely neglect your minor glyphs though. Unburdened Rebirth is recommended as a minor glyph for all specs to remove the reagent cost. Other than that the rest is pretty much optional. One that is commonly recommended for Balance is Glyph of the Wild because in situations where you are low on mana, the cost of casting Gift of the Wild is cheaper than Hurricane and you can use Gift of the Wild to try and force proc Omen of Clarity for a free Hurricane (in a 25 man raid with pets, this comes out in around a 95% chance to proc Omen of Clarity since it is based on the number of targets the spell was cast/channeled on, which is why Hurricane has a high tendency to proc it as well). However, like I said under spec, mana shouldn't really be an isue for you anymore so other than Unburdened Rebirth you can pretty much pick and choose anything you like (I personally use Aquatic Form and Dash cause I like movement improvements, more useful for PvP though).
Only a few sub-optimal choices made here. The legs generally you would want to use Brilliant Spellthread instead of Sapphire Spellthread unless you need additional health for hard modes or it is PvP gear. For raw DPS, you still benefit some out of Spirit and should choose that over Stamina. The other mistake is your bracer enchant is sub-par. Only 23 spellpower instead of the 30 spellpower enchant. I suspect this largely has to deal with it being only a 200 item level piece that you hope to replace soon, but nonetheless I thought I should point it out.
There are a lot more mistakes being made in this department sadly. Here are some very general guidelines.
First off, all red sockets are always filled with Runed Cardinal Ruby.
If you have a one socket item with a yellow socket and a socket bonus of 5 spellpower, you should go for this bonus and use a Potent Ametrine to obtain it. Otherwise, use a Runed Cardinal Ruby and ignore the socket bonus.
If you have a two socket item with at least one red socket and a socket bonus of 7 spellpower, you should go for this bonus and use a Potent Ametrine if the second socket is yellow or a Purified Dreadstone if the second socket it blue. Otherwise use Runed Cardinal Ruby in both sockets and ignore the bonus.
If you have a three socket item with two red and one other or two yellow and one red that has a socket bonus of 9 spellpower, you should go for this bonus and use Potent Ametrine in any yellow socket, Purified Dreadstone in any blue socket, and Runed Cardinal Ruby in any red sockets. If the item has one socket of all colors, you don't go for the socket bonus. If it has more than one blue socket you don't go for the socket bonus.
Always use Chaotic Skyflare Diamond as your meta. Because of that, the only case which overrides these rules above is the need to maintain the meta gem requirement, you must have at least two Purified Dreadstone in either blue or red sockets. With this in mind... the following corrections I recommend.
In your helm replace your Runed Cardinal Ruby with a Potent Ametrine. If 5 spellpower is worth using a yellow hybrid cut, 9 spellpower is definately worth it. This nets you a DPS gain.
In your shoulder replace your Runed Cardinal Ruby with a Potent Ametrine. This nets you a DPS gain.
Your chest is gemmed correctly.
Your belt should have only Runed Cardinal Ruby in all three sockets. The socket bonus of 7 on a two socket item is only worth while if at least one of the two sockets was red. Switching all the gems to Runed Cardinal Ruby results in a DPS gain.
Legs are gemmed correctly, a 4 spirit socket bonus is never worth it you would only consider a socket bonus if it were a primary dps stat like spellpower.
In your boots you should replace one of the Runed Cardinal Ruby with a Purified Dreadstone (the blue socket obviously). The 7 spellpower socket bonus justifies using it. While this does net a very small DPS loss (1-2 DPS) it is one of the two items you would have Purified Dreadstone in to get your meta gem requirement met.
Gloves are gemmed correctly.
Cape should have the Runed Cardinal Ruby replaced by a Potent Ametrine for a small DPS gain.
Here is where I get to chew you out for doing big mistakes in priorization. You bought both the cape and the idol from the emblem of frost vendor. As a balance druid, you should go for the tier pieces first. Two piece tier 10 is better than four piece tier 9. Four piece tier 10 is better than two piece tier 9. And the items have significantly more spellpower and are better itemized for DPS (no more spirit). The tier pieces should be bought first. The item level 277 tier set is best in slot for balance with one exception (I forget which), you want to have the set, it is very high priority. First off, you spent emblems of frost buying the idol, which is about a 25 DPS increase over the emblem of triumph idol. While it is best in slot, upgrading one of your tier pieces to the 251 tier piece would have brought you way more than a 25 DPS increase. The other piece, the cloak, is very bad because you made the conscience choice to spend your high end badges on a cloak with spirit, the least valued stat. The cloak you actually want will come from Valinthria Dreamwalker on either 25 man (crit/haste) or 10 man (hit/haste) difficulty. Both of those are significantly better than the cloak with spirit on it. Sadly you already bought those pieces and its too late to get your emblems back.
Here are your priorities going forward. First off, get four pieces of tier 10. Then you can either get the belt or the last piece of tier 10 (in my case I got the last tier piece cause I had a token to upgrade it banked). The belt that is haste crit is the best leather belt you can get at item level 264, unless you jump to the 277 level you can't beat that belt.
On to trinkets, a very popular topic. Your second trinket with the 111 spellpower and the on use effect. It is a lot weaker than you think. Obviously you can only really benefit from the crit during wrath heavy portion of your dps phases. At the same time however, the benefit isn't quite as significant as one might think. You ready for the sad fact of the matter. Sundial of the Exiled would likely net a higher DPS gain overall. It will average very close in spellpower increase while having an average crit rating increase that is higher. I highly recommend against the Nevermelting Ice Crystal personally and if you have something else like Illustration of the Dragon Soul or Eye of the Broodmother while lower in item level both are significantly stronger items. In general, stay way from on use trinkets, they almost always don't work well for Balance.
You have to properly understand the DPS phases (no eclipse, pre-eclipse, eclipse, and post-eclipse) to execute Balance Druid DPS effectively. You should view some of the information provided over in this other topic on Balance Druids because I cover in there a bit more understanding of the Balance DPS phases, there is also a link to a video I made demonstrating the proper execution of the cycle (sorry no sound).
To litterally quote myself.