if you're good and your healer is good, screw cc. it just holds back your group's potential. i find myself tanking a lot of heroics with dps gear in the slots where i don't have block value items just for aggro's sake (more rage etc). of course i have the pleasure of tanking for retardedly high-dpsers that go all out from the get-go with reckless abandon. runs go faster, are a bit more chaotic, but more enjoyable for all.