Hello, I have thought about it and have decided to try the Nvidia SLI but I need some help. Im not sure how this works really. Do I need to get 2 PCI-Express Geforce video cards or 1 PCI-Express and 1 AGP? Also, how are the cards connected? Would I need to buy a extra piece or would it come with one of the cards or motherboard? The little demo they have here on this page http://nvidia.com/page/sli.html near the bottom shows something connecting the 2 cards togeather. Could you guys help me pick out a SLI Motherboard with 4 Ram Slots that is for AMD, and a AMD processor that would work best with a SLI setup. And also help me to pick out the 2 Geforce cards I am going to be putting in the machine. I would like to get the Geforce 6800 Ultra but there are so many different companies that make it I dont know which is reliable. So, I need help picking out the Motherboard, Processor and 2 Graphic Cards that will get me a SLI setup. Thanks