We need more information. AGP or PCI or PCI-express?
Also what's your budget and what will you be using the card for?
your computer? If so, and you want a video card to play games, you're kind of out of luck. It has no AGP slot nor PCI-Express. Only old PCI slots.
In case you don't know, AGP and PCI-Express are the new age slots that transfer data very fast to the computer. Since you don't have either of those, only PCI slots, then the PCI slots are very slow for games. You can play old games but nothing new, and if you can play something new, it'd be very jerky and such.
AGP slots are slowly going away (but still are fast, and still very abundant) and PCI-Express are the new generation. PCI-Express IS different (big time) than PCI.