What kind of graphics card can I buy? I have this computer http://www.epinions.com/pr-Sony_VAIO_PCV-RS530G_PC_Desktop/display_~full_specs It says: Expansion Slots AGP x8 x 1 • PCI x 3. Does that Mean i can use either pci or agp? or do i have to go by the motherboard part? AGP. If I do have to use AGP for my graphics card what are those other expansion slots for? Is it hard to install properly? i have a few things upgraded: dual layer sony dvd burner and 2GB total RAM. THANKS MAN!