I understand - I've read wowwiki, thottbot, wowhead, etc on every fight in naxx, and all the other raids available right now in WoTLK - even though I've never been, I want to be prepared in case I do go sometime. Of course all the amount of gear in the world isn't going to help prevent a wipe in those few circumstances where there can be an instant-wipe if something is done wrong, but over all if you can get those few parts down good, the rest becomes far easier if you have better gear.