lists tons of information PCI graphics cards
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=GGLD,GGLD:2004-10,GGLD:en&q=PCI+graphics+card
Gateway WinXP Home SP1
Wanted 2 monitors. Installed AGP graphic card with 2 monitor ports. (Installing additional cards disables graphics on motherboard.) Now want to install a 3rd monitor but the only free slots are PCI. Can I install a PCI graphics card to enable a 3rd monitor if I already have an AGP card? Using them to stretch my desktop - not for gaming. Thanks for any help.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic