I had read an article probably about 3 years back about someone who had bought the new high end NVIDIA video card (I think the 6800) with the PCI-E interface. It cost about 600 bucks. Well he didn't have a PCI-E slot on his mobo, just the AGP and regular PCI. His "friend" told him that he had to cut the card (like with scissors) to make it fit in the slot. I don't think I need to say anymore.