Well, its hard to check when we dont know what you are going for, PvE, PvP, raids, heroics, arenas, etc.

Anyway, The First Shaboom is an enchanter, but doesn't have ring enchants, so thats a bit of extra spellpower you can squeeze out. Also, if you have a lot of spare stone keeper's shards, you can get shoulder and head enchants from a vendor in Wintergrasp, add some spellpower and resilliance while you are at it. Also, if you have enough honor, you can upgrade your helm and shoulders to the epic lvl 213 ones.

For your tank, make sure you farm the brewfest boss, you can get a huge upgrade to that lvl 70 stam trinket, and since you are 4 ele, no resto, more stam on your tank is even more important. Also, since the tank is an engineer, aren't there some more engineering specific item enhancements?

All in all, your team looks very good. I bet you farm heroics pretty well with that comp? If not, I'd dual spec one shaman resto, it may be slower on a lot of fights, but it's much more controlled having a dedicated healer.