Yup Apple's stuck at a transition period... who asked them to release their Intel-based Macs 6 months ahead of schedule.:bsmilie:
Now, you're got to run all non-native Mac programs through Rosetta which basically negates any gains the new Core Duo chips provide. Performance is in fact slower than the previous generation of macs the new stuff replaces, so for PS users, its either wait or get a PC notebook.
You could, of course, run XP via bootcamp, as I'm sure many Mac fanatics will yell soon enough if I don't add this line in. Yes you can dual boot to XP and the programs will work just fine, but you'll need to buy/own a copy of XP AND the windows version of the software, so it adds to cost. And a macbook ain't that cheap to begin with, so it defeats the purpose if you're running mainly windows on a Mac.
So bottom line, neither for now. Wait.