For those that would like to do a bit of reading on some strategies for Nax or just getting an idea of what the bosses do, here is a link with some drawn out positioning as well as videos so you can see what to expect from this instance.
http://wow.zuggaming.com/2008/11/24/nax ... trategies/
I will possibly add to this to consolidate the info in the forums and just cite this site since it might be easier to have the info localized rather than hitting a link to that site.
Also, here are some videos(most are high res) for some of the fights in Naxrammas. It helps to do your homework though on these guys so you know what to expect and there is some narration to help you see what is going on. I believe most of these are from a tanks angle but listen to what he says it might make the run go by quicker and smoother!
Spider Wing
Anub'rekhan
Grand Widow Faerlina
Maexxna
Plague Wing
Noth the Plague Bringer
Heigan the Unclean
Loatheb
Military Wing
Instructor Razuvious
Gothik the Harvester
The Four Horsemen
Construct Wing
Patchwerk
Grobbulus
Gluth
Thaddius
Final Wing
Sapphiron
Kel'thuzad
More to come!