I have around 350 bucks that is burning a hole in my pocket, and i need to buy something. I have a Athlon 800, GeForce2GTS, Sound blaster live value, 256 megs ram, a 30GB HD that's full with 5,000+ mp3's and a bunch of games, and Klipsch 4.1 promedias. I have no idea on the motherboard but i'm...