Right now, there is virtually no difference between agp cards and pci-e cards. Also, timings can affect performance, but its barely noticable. People get quality ram mostly for ocing.
Edit: affect not effect lol
Also, the only things that I find you can improve for cheap is RAM and Video cards. The processors are hard to upgrade, especially if your getting an intel processor. Intel jacks up it's prices for outdated processors just so you'll buy the new ones. Also, in 3 years, it will just be cheaper to buy a new computer and use the old computer for data storage or something.
Edited by hacp, 11 June 2005 - 10:12 AM.