Hit 70 a while back, been doing a fair amount of PvP and instancing. Doing the level 70 instances by myself is a lot harder then I originally anticipated. Slowly working on my Sha'tar rep so I can get the helm enchant. Have done a couple Karazhan runs with just my 3 mages, really wasn't all that bad, I have the biggest problems when I throw in my warrior/shaman and have to heal + tank/dps.

Pic of the 3 mages in AV: