[PvK]

Once the demo is out, I'd just try that, and if there are performance issues, tweak the settings.

Some random examples: I am quite happy with the performance on my Athlon 1.4 GHz w. GeForce 4 Ti 4200 video card on Win98SE. I think the video card may be more important than the CPU at least for the graphics - I think my ~3 GHz Pentium with a not-as-good ATI video card on Win2K Pro has slower video in Dom 3. But it's still quite good as long as the background rendering distance isn't set too high and it's trying to show huge mountain landscapes and do huge spell effects at the same time.

PvK