photoleia: I know this is a stretch (and the answer is probably no) but I have a friend who only has a mac, but really wants to play the Witcher. Has anyone tested it to see if it can run in any form or fashion on a mac? Mac windows? with supplemental programs? Anything?
Ebery Mac with an Intel processor can run windows natively (this is usually called BootCamp). If the Mac's hardware meets the requirements there should be not problems qand if there are then it's the developer's ault, since a Mac running Windows natively is no different from a PC with the same hardware components. The only real downside is that you need a valid Windows license and you have to reboot your Mac to Windows.
The other option is Wine (or Crossover, a commercial version of Wine). Wine lets you run Windows programs on Mac OS X and Linux without needing Windows. It's kind of like an emulator but it doesn’t emulate an entire computer, so performance can be quite good depending on the program in qustion. Obviously not every game will run well, some will need tinkering, other won't work at all.
The offical Mac version of Witcher is actually ported with Wine, more specifically an application called Wineskin that wraps everything into a nice Mac application. It's not a native port, I don't know how the performance is. I played the original Witcher on my Mac (early 2009 iMac) with an Nvidia 9400M graphics card, which was well playable on lower settings, but I wouldn't bet on the Mac port running. On the other hand CD Projekt does have the source code for The Witcher so they could have optimised things. I don't know.
