Yeah, i've heard newegg are great, and tigerdirect.com's supposed to be too.
"Yea true kage......but minum HL-2 requirements are a1 .4ghz p4 lol and i got a 3.0 lol 1.4 came out in around 2000 thats y i didnt get a top line intel or amd processor...cause it dont make that much of a diffrence"
Yeahm, thats true EXGamer, but games will excel slightly with a faster CPU. Especially since whatever6750 wants to make the pc last a long time. Thats why I chose PCI-E for him, and so if he updated the video card later on, the clock speeds on the processor would become a problem also so might as well pick a high one if you get what i mean
For the PSU, yeah about 450watts should be great
I hope this helps