I'm giving away my current system (Athlon X2 64 3800+/ATI X1950/2GB RAM) to my younger, and "college-poor", brother, and I've been looking at the pros and cons of getting an X48 vs a P45 based system. I would be keeping my current case, a 620 W Corsair PSU, a 24" Dell widescreen LCD panel, and a...