Any card will be better than what you have. You can get cheap semi-decent cards from CompUSA (Mad Dog), or from newegg.com (better choice). There's zero chance your PC has PCI-e (PCI Express), and a 99% chance it DOES have AGP. Get a good 2x/4x/8x AGP compatible ATI video card (or nVidia, if you have to), up to 256MB (set AGP aperture to 256MB if you can in your PC's BIOS). You'll probably want some more RAM while you're at it (newegg.com again). Just get the same kind (not the same brand) that is already installed, there are several diagnostic programs that can tell you what you have.