A couple of nights ago, I did some of Naxxramas (10-man) for the first time. Having your very first Naxx fight be Four Horsemen is rather intimidating, in light of that fight's history.
Aside from me completely failing on Kel'Thuzad and the Frost Blasts, it went pretty well. Killed some stuff, got a couple of epics, and even made the Thaddius jump.
I did die to the slimes after Patchwerk. It was odd because I blew up, didn't see any slimes near me, and had to pan my camera around to see the slime that killed me. One of the people in the raid gave me a tip which I had not seen before, so I thought I'd pass it along:
Don't run in the middle of the gap between slimes. Run right behind one of the slimes.
Pretty simple. I'm not sure why my natural reaction was to aim for the middle. The problem is not to maximize distance from both slimes, but to maximize distance from the incoming slime.
Now I have to master healing the Frost Blast targets fast enough. Any tips? I think I have to figure out how to get Grid to display that debuff properly.