Wow...this is way too long ago but I think the first raid I ever went to was Naxx 40.
This was on Sizzlelegs when she was level 63 or so. BC has been out for some time and I had heard of Naxx, even attuned myself to enter it in the hopes that someday I could run it.
I died, as did alot of people. I see this alot when new content comes out, people think "Oh I'm 85, i can WTF PWN it" and promply die and/or wipe the raid.
Good times, I still enjoy running Naxx 10 or 25 just for fun. I am still chasing some achieves in there as well, some day I will get them!