I am in the market for purchasing a new video card, but I have a problem: My computer doesn't have an AGP slot for a video card. The card I am looking at right now comes in both a PCI and an AGP model. What exactly would I be loosing by not getting the AGP model. What would it take to get an AGP port, besides a new motherboard. I want this to be a low cost venture, so lets try not to buy a whole new computers worth of parts