Worth noting that the pvp pieces (http://www.wowhead.com/item=70592 and http://www.wowhead.com/item=70594 in particular) are extremely good (certainly vastly better than what you're wearing), and you can trade in JP for Honor and use that to buy them.
Fluid Death is extremely good, the Eye and Coaster are both pretty mediocre...if you had the 346 Eye, I'd say keep that. Honestly they're pretty close. Expertise is a VASTLY better stat than crit is and the proc (agi) is better than the pure ap proc too...probably. Either or, really...you'll want to replace them both (also, do the Molten Front dailies...the meteor is better than both the eye and the coaster).
The Hyjal neck is fine, better than the pvp one you're wearing.
You shouldn't reforge TO crit until you've capped both hit (spell hit) and expertise and the piece already has mastery. Your stat weight is: Hit (to spell cap) > Expertise (to dodge cap) > Mastery >>>> Crit > Haste/Hit (after the spell cap).
There is some "beginner gear" linked in the guide too...Molten Front is a solid (if slow) way of getting some upgrades without raiding.