X4 or X3 on Mac via Bootcamp

I am purchasing a new laptop (read smaller to fit in my camera backpack) for my trip to Costa Rica next week. I have been considering an MacBook so that I can use it in my teaching (about half my photography students are MAC based). I already have a nice Vista Laptop that is two inches to big for my backpack. A bigger backpack won't make carryon guidelines.

So, does anyone have any experience they could share with me regarding BootCamp, Parallels, etc. on an Intel Mac and the running CGS X3 or X4 on the Windows side in Vista or XP?

Pitfalls? Performance?

Rikk