If I upgrade to a frankenmac now, what will my future video card upgrade options be? i.e. - if I want to upgrade to a 8800GT or whatever the hotness is that gets released with the Mac Pro 2 updates, will I be SOL if those cards are PCI-e 2.0 based? Sure, the bandwidth is a major concern with the current octo-core and the SSE4 optimizations would be nice to have for h.264 compression, but the real hanging point for me right now is the graphics card.