Aww no Hunter+pet, Boomkin, resto Shaman love. You get an OT, 2 dps plus healer. Or you could do Hunter + pet , boomkin, ele shaman and get OT, 3 dps, 2 off healers.

Edit: with 3.1 I could see this doing well with a pet Turtle. Thunderstomp specced plus 50% halved incoming damage for 12 secs. 3 man instances? lol.