We ran Naxx25 this weekend (there's a whole long rage-filled rant there ... poke me later and watch the bile ooze out), and I managed to live through two (2) epic battles.
First, I broke my heretofore perfect record of finishing Heigan face down on the floor. That's right ... I survived the dance, finally. I even managed to get some DPS in the process because Devouring Plague and Shadow Word: Pain both work even when I'm in holy spec. I forget how long it took, but we had at least five people up at the end.
Second, we downed Instructor Razuvious in what was nearly a wipe, and got down to the last understudy with maybe five people up and him at 20%. Razuvious broke loose a time or two during the fight, but most of the people that died ate it from the fan of knives AOE thing he does. I do need to holla at Bearbehind, though. He tanked one of the understudies all by his lonesome for a long time. I also had no idea bears could get that much HP; he had like 50K when raid-buffed, which is just an insane amount of health.