A friend recently give me a Gateway 400 mhz. celeorn system with onboard Ati Rage 128 Pro video , and I was wandering if I would be better off on my older games (Monster Truck/Motocross Madness 1+2,Need For Speed 3,Unreal,etc) using the Ati by itself , or using the 2 free pci slots and slapping in my old 12 meg Voodoo 2's in sli mode for 3d stuff .