Patch 4.0.1 is coming soon, with it are some major changes in the way tanking and the other roles work. Shortly after (7/Dec/2010 to be precise) things change even further with the new content, where that shiny gear you’ve been building will rapidly become just so much purple junk.
Now, given these changes I give you some wise words from a Crab we’re all rather fond of (except when he talks about nerfing Paladins to the ground…)
“Right. If you are trying to AE tank and a bad dps is attacking the wrong target and dies, we call that justice.” – Ghostcrawler
So you’ve heard it from the eight legged wonder, AoE zergfests are dead, pick the target the tank marks, focus down that target, use CC on the marked targets. Behave, don’t be a dick or you will have a repair bill.
Oh and as a final parting thought, the durability costs are being levelled, you’re going to have the same repair bill as the tank, suck on that one for a while.