FSX on a mac pro - experiences?

Is anyone here using Microsoft Flight Sim X under boot camp on, specifically, a recent Mac Pro?If so would you please be kind enough to share your recommendations, experiences, add-ons, flight sim equipment and your system specs? I am looking at the GEFORCE 8800 GT as the graphics option as this seems the most appropriate.I am seriously thinking of a mac pro rather than a high-end iMac as a longer term (and upgradeable) work/play option.Many thanks.