I am building a 64 bit computer I have a AMD 3200 Processor 939 oin & a Abit UL8 motherboard. my question is How do I know if I can use PCI express video cards or not. the motherboard has the 1 AGp slot & 5 PCI slots & if this motherboard cant handle PCI express will any AGP card work. I already have the Nvidia 5500 card.