Yeah, I'll second that. I could get it to run on a 400Ghz G3 B&W with the Rage but it was like 10 seconds per frame. The least powerful machine I could actually play on was a 1Ghz G4 powerbook. 1G ram, IIRC, but I can't remember the video card. This was with everything turned down in the GUI settings and the additional speed tweaks typed into the ~ console.
Sorry Noddy...