My specs are much lower but still good to play on full det and high resolution (1280x1024pix [my screen's maximum]):
Intel Celeron 2.0Ghz
SDR 512 MB RAM
Nvidia GeforceFX 5500 AGP - 256RAM (DDR?)
80GB HDD
Without any overclocking
I haven't thought it'll work that fine on my PC.... but it's only 1 model 1 scene demo...