Any thoughts on how you want to use the new install?
When you mention Sony Vegas what sorts of video formats are you working with?
Don't be discouraged if a few media formats don't play after a fresh install. It will prompt you that it needs to look online for additional plugins or other software the first time you open an mp3 file or visit a web page using flash.
After an install you can have a browse through the Ubuntu software centre to see what else is available. For media I'd recommend you search for some extras like
Gnome MPlayer and/or VLC (plenty of codec support)
Cheese (photos and videos with your webcam, if you have one).
It comes with Firefox but you can add Chromium or other web browers if you like having a choice.
prompt $P - Invalid drive specification - Abort, Retry, Fail? $G
prlzx on n e w n e t Max ADSL