I've watched a lot of videos of Heroic dungeons being cleared, virtually all of them do not show anything about clearing trash. I know that the boss fight is what most folks are interested in, but I'm interested in getting trashed cleared efficiently too.

I'm runing a DK + 4 shaman, and I'm wondering how people handle pulls when they get 3 or more elite heroic trash mobs. Two mob pulls aren't really a problem. Three mob pulls seem like I'm healing quite a bit, and in some cases my DK tank will die. The obvious solution to that is to get good at using Hex and keeping one mob CC'd, or at least I think that's the obvious solution. The other possibility I suppose is that a DK tank with better gear might be able to handle 3 heroic trash mobs without that much difficulty?

Any help or thoughts would be appreciated, thank you.