I upgraded my graphics card in my 2008 dual 2.8 Mac Pro from the stock ATI Radeon 2600XT to an Nvidia GeForce 8800GT. The reason - I want to have full OpenCL support when OS X Snow Leopard arrives. The procedure is simple but I thought I would share.
do you have the quad core mac pro or the 8 core? i’m looking to upgrade my mac pro as well but i have the nvidia 7300