Ouch man. I spent about $4000 (even with the water cooling setup) and I get better than 30 FPS with everything MAXED in FSX... Another case of the fact that it's far better to build you own machine to save a ton of money and get better parts.I just looked at your specs, and alot of money was spent on the video cards, on which FSX is not dependant. I would have got 1 8800GTX, then spend the $600 from that on water cooling your CPU so you can overclock it like crazy. I have had mine running 5.0GHz per core and stable too, but the water gets a bit warm at that point.

I wanted to build my own system, but I was too scared and ignorant of putting in a water coolant system myself. So, I bought an Alienware instead. :D