[Beasty]

Damn you guys beat me to it >:O

Yea VGA's only carry a video output so you need either what hawk said or a speaker set that you can plug into your pc directly. My grandmother has a nice seven speaker suround sound set. Pretty freakin legit. Way better than the speakers on a tv.

Just an fyi, i actually have the same setup as you, my computer, consoles and tv all run one tv as a monitor/tv. I do use seperate speakers, a two speaker set for my pc and the tv's speakers for console/tv.