If by "Flash Heal proc" you're referring to Surge of Light, it's a decent talent. The options early in the tree are very weak, and it is going to be buffed to proc off of Flash Heal and Greater Heal as well, so you could do worse.
Body and Soul is way better than many of the other talents you take though. At the very least, it's a personal sprint which is useful - but if you use it on others when they need to kite or just move from point A to point B, it becomes fantastic. Look up the Atremedes fight for an example.
Darkness is way better than Imp PW:S for Holy.
Blessed Resilience is a PvP talent and a pretty weak one at that. The death angel is acceptable but not something to really seek out, same with Rapid Renewal (very rarely are you casting Renew back-to-back).
So if we play around with your spec a bit, we get this. This is pretty similar to what I use personally.
Now when 4.0.6 comes, it will A) buff Desperate Prayer (right now it doesn't heal much at all, but they are increasing the heal by a ton), and B) bring the 1 minute Chakra duration which eliminates the need for State of Mind. So then you would use something like this. (the last point can go in either Inner Sanctum or Veiled Shadows)
Your glyphs are good for the time being, however I would recommend glyphing for Lightwell once you begin raids (especially 25's).
Gear looks fine, just reforge more Crit into Mastery. Mastery and Haste are both very valuable for Holy - Crit really is not.