Hehe... Right after I soft-whined that healing becomes less fun as the raid gets more gear, I read about this new fight that just got tested on the PTR: Valithria Dreamwalker. This fight is backwards, in that you find an NPC that is at 50%, and your raid's healers have to heal that NPC before adds can take her down. They do a lot of nasty healing mortal-strike stacking debuffs too, so the adds have to be managed carefully.
Basically, they turn the tables- in normal fights, the dpsers do the measurable work while healers support them by keeping damage off them and healing them through the unavoidable damage. In this fight it's now up to the healers to get an NPC from 50% to 100% health, while the dpsers take on a support role, and manage the adds to let you do your job.
And the achievement for killing her quickly? Healbot.
I love blizz sometimes. Cannot WAIT to see this fight on live! I think I'll make a macro "/ra cna some1 link healing meterz plz?". Yep, I'm gonna be THAT GUY.