I have a computer right now but it's getting slower and slower as i add stuff. I am running 4 screens at the moment and it can just barely handle it. My goal is to run 6 screens at the same time. I am looking at getting a new mother board. One of those with 3 pci express slots. I was looking at some but i dont understand the difference between crossfire and sli To get 6 screens running at the same time what kinda motherboard would i be better off getting. I'm currently looking at these 2, ill be using 3 geforce 8600gts video cards SLI http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=3871479&CatId=2547 Crossfire http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=3568921&CatId=2050 advice?