I have nVidia GF 8800GTS 640MB, Athlon 64 X2 4600+, 2 GB RAM and dual-boot. Demo played on high settings pretty well ( on Vista )... Maybe they sorted something out so I can play it on high with decent frames. And this post-processing looks like in the UT3, but UT3 runs far more smoother... By the way, don't use nVidia's 169.04 beta drivers... I tried with them and game ran slower than with WHQL 163.75, at least on my machine... So I'm sticked with WHQL 163.75 and waiting for new drivers that will improve performance. And UT3 ran better on WHQL 163.75 than on beta drivers...