@ ben_1001: you really do not have to spend that extra money for the corsair xms unless you want to overclock your ram. Also keep in mind that intel's cpu's are better office and multimedia, while amd is better for gaming. If i were you, I would get a AMD Athlon 64 3400+. They are the best bang for your buck. http://www.zipzoomfly.com
has very good deals and the small stufff is free second day shipping.
Get this cpu for socket 939:
$272.00 USD (FREE SHIPPING!)
Get this cpu for socket 754:
$219.00 USD (FREE SHIPPING!)
Why get socket 939 when 754 is cheaper?
Well, 939 will be better in the future because they will be making new cPus for that in the future when the 754's will be outdated.
-Remember that if you got with amd, with socket 754 or 939, you will need to change your motherboard. Abit is a good cheaper brand too (cheaper than asus).
EDIT:sorry for the double post I did not realize it submitted before, because I wanted to add more text.