Everything I used to do under XP, I'm still doing them under Vista with no trouble...
still watching movie's(avi, xvid etc), CD's, DVD's, Burning, Torrents all that, WITH NO ISSUES...
no audio troubles at all...damn i'm practicing right now using voice recon with no trouble at all...
stop being so damn scared, its your job too resolve issues, thats why you get the mucho bucks:p
try looking at it like your almost a newbie Skuzz, cause most of your customers ARE newbie's...oh and you got no choice in the matter, say i'm wrong on this:rofl