Thanks again for your responses.
Well, I talked with my friend regarding the things you told me, and it looks like he wants the celeron because the motherboards for the 754 socket is a little more expensive. It ends up that either he can have a 2.6Ghz Celeron -D with 128mb of memory, or 2.4Ghz Celeron -D with 256mb of memory. This is based on the fact that the 256mb of memory is around 18 bucks and the 128mb is around 6 bucks (after mail-in-rebates). I'm not sure what you, Hacp, mean about the "build", but if you mean the RAM speed, it's PC2100, but I read somewhere that faster RAM is compatible with slower RAM-supported motherboards. I know, it's really outdated stuff, but he really wants a very cheap computer: case, cpu, and motherboard combined for $140 if possible (the rest of the stuff he has already). By the way, the PC3200 512mb of ram for 20 bucks is really cheap and I will definelty convince him to buy it if I can find it.
So now the main question is which is better?: 2.6Ghz Celeron -D with 128mb of memory, or 2.4Ghz Celeron -D with 256mb of memory (probably able to convice him to 512mb)
And by the way, here is the current setup that I have for him if he were to choose the 2.4Ghz Celeron with 256mb of memory:
Diablotek Phantom ATX Mid-Tower Case with Clear Side, Front USB & Audio Ports and 550-Watt Power Supply (29.99)
intel Celeron D 320 Prescott 533MHz FSB 256KB L2 Cache Socket 478 Processor - Retail (72.99)
PC CHIPS M925G V9.1B Socket 478 VIA P4M266A Micro ATX Intel Motherboard - Retail (29.99)
pqi POWER Series 256MB 184-Pin DDR SDRAM Unbuffered DDR 333 (PC 2700) System Memory Retail (17.99)
Any suggestions would be highly appreciated.
Thank you again.