Ok.

Tri, thx for the input.

Qlimax, I intended to have a 30" cinema display for the 4 alt instnaces and a 23" for the main instance. If I am understanding you correctly, you believe I would benefit from having 2 x 8800 GT, and I assume that means each 8800 GT driving its own monitor? Is this possible on the Mac Pro?

Is it the case that this would be an upgraded configuration? Would it be a HUGE upgrade? The 8800 seems relatively inexpensive if this is the case. The only question is if I an can get apple to provide the configuration or would I have to install the extra card myself?

Thanks again for the input guys, I definitely have a clear direction.