I am thinking about getting an extra gfx card for my Mac Pro to add a third output - I need this to go to a monitor which has HDMI, but I guess I could add a DVI>HDMI connector to take care of that. The thing is... what kind of gfx card can I buy? It doesn't need to be anything fancy, since I will only need one extra output and no extreme 3D features. Currently I have the standard nVidia 7600GT card that comes with the Mac Pro. Can I just buy another one of those and slap in? What about BIOS/EFI? Do all 7600GTs come with EFI, so they will all work in a Mac Pro?