I have a P4 3.2GHz, 2gig of Duel Channel Ram, and a ATI X800XT video card and i run Boiling Point with 'all' settings on full/high, (all slider bars are to the right), at 1024x768 with basically no problems at all! There is the very slight stutter once in a while but nothing to bad! But when I run it at 1600x1200 I do have some stuttering problems!
I have yet to try any of the tweaks and I havent installed the latest upgrade patch for it yet.
Later I will try some of the tweaks mentioned to see if I can get it to run at 1600x1200.
I just thought I would mention this to let you all know what you basically need to run this game with all the eye candy! Looks very nice btw.