I have a Compaq Presario SR1320NX Desktop computer. It currently has the factory standard integrated graphics card with up to 64MB of allocated video memory. I will be upgrading to the maximum of 2GB RAM. It has 2 PCI slots (not PCI-E, regular PCI), and one AGP slot. What are my options as far as upgrading video cards for this computer, and what is the maximum size of video card that it will accept?