Laptop recommendation for inventor/pro/e/etc

[Zyrano]

I'm a mentor for a couple of local teams, I would like to purchase a laptop for use with inventor/pro/e etc, so that I can brush up on my modeling skills, get some seat time with inventor, and when I'm somewhat comfortable with the various software, bring the computer with me and encourage the students to use it. I use pro/E at work, but have never used inventor. Anyway, i'm looking for a good laptop recommendation to do this with preferably one with a smaller screen (11-14?). I'm looking at a macbook pro with 13" screen, or maybe the recently announced alienware m11x? any other recommendations?

Thanks,
Alvin