First wanted to say hello to everyone Awesome community here. I just got my first MAc Pro today. and I am moving over from PC. where I had 2 new Evga 8800GTS (G92) 512. so I desided to flash then with the EFI8800GT Bios I saw and here and Well it Works Great on my 8800GTS. So I took out that HD 2600XT and getting some 8800GTs Loving on my mac now. and I have 128Shaders so I guess I have a 8800GT now with 128 Shaders. Anyways Thanks everyone for all the Great Information!