bit the bullet last night and picked it up off gamers gate. fuck you steam
good news is that it seems to run better than the demo. bad news is that i can only get more than 15-20fps if I play on low settings with low shadows and everything else turned off

even if i change from 1650x1080 to 1280x720 or even 854x480 i still get really shitty performance with medium settings. the performance i get on full settings (high and all lighting) too is very similar to medium, probably about 5pfs lower. but as soon as I put it to low settings i get a massive jump in frame rate, between 40-50fps.
it doesn't look bad at all on low settings but its just disappointing after seeing how sexy it looks on higher settings. everything just seems so empty without the medium detail.
I'm playing on an Asus G1 laptop - C2D @ 2.0ghz, 3.something GB of RAM (lousy 32bit Vista), 512mb GeForce 7700 Go. I don't expect to have anywhere near full detail but I figured I could get medium settings on a lower resolution which doesn't seem to be the case.