Depends what you want to use it for and what fits with the rest of your system. That board is an LGA775 motherboard. So I am assuming you have a Core2 CPU, or maybe Pentium D at the least. What are the rest of your computer specs? CPU, Memory, OS, power supply, etc. Also, what is your reason in looking for a graphics card. I.E. What do you do with your PC? Gaming? Graphic Design? General use? Farmville?
You can install any card that has a PCI-E connector on that motherboard.