Do you REALLY need 650 watts of psu? As they've mentioned before, 4 gig RAM is even slower than 2 gigs, which is why most people would just buy 2 gigs with heatsinks... I don't think your sig understand there's no such thing as a "P4 Duel Core" processor, duel cored intel processors are labeled "Intel Pentium D" and I won't even go into how much everybody hates intel.