:)
Actually Black slots are for RAM; White for PCI; Brown for AGP. At least thats the universal color code but If you bought your computer from people who like to make mb's unique it might be different.
I would recommend a Geforce3 ti500 or an Ati 9000 Both won't cost you more then 40-55 used 55-75 new. It's my personal feeling that only a 1.5ghz computer, should be matched with today's highend graphics card. deduct 500mhz for every generation gpu. So if you have a 1ghz a geforce3 would be ok, 500mhz a geforce256-geforce2 would be ok.
If you don't have an agp slot and only pci, then its best to go with a pci nvidia card, because I think the latest pci ati card is the 7000 which isn't a good card to get. Actually I would opt for a new motherboard with an agp slot.
