I have a mac pro early 08 it currently has the NVIDIA GeForce 8800 GT 512 MB. I want to boost the graphics a little and I was going to order a second 8800gt. I have done some searching to figure out if I can sli these two together but since it is an older card all the articles or discussions seem to be pretty dated. Does anyone know if this is possible with my machine? It seems to me that you can but then I see people talking about sli drivers not working but like I said those discussions are older. Thanks for any help.