You do know that graphic cards on laptops = absolute battery killer + those laptops are a pain in the @$$ to lug around, right?
Also, games don't terribly work well on Linux, so you've got some weird requirements there.
You're probably better playing the games on your desktop unless you plan to stay at college long hours.  Videos will work though.

Otherwise, you seriously don't need the 2.4GHz requirement - games rely on the graphics card primarily, videos won't need that speed (in most cases that is) and most software won't need it either.
RAM seems reasonable.  Would aim for a 8600GT/HD3600 card if you want games.
I can't give recommendations though, looking at the price, you'd probably be hard pressed to fill your requirements (most laptops with good graphics cards have a "gaming" label which you pay a premium for).

See if anyone else finds something.

EDIT: the Vaio you mentioned has a 9300M card, which is fairly poo poo.  If you're fine with that card, it could be possible.

(This post was last modified: 25/05/2009 05:11 PM by ZiNgA BuRgA.)