Fletch, don't fall for the trick! I have worked in all the major recording studios (as a major label A&R/Producer) so I can say I've seen pro tools set up in every configuration imaginable! I've been more impressed with the setup when put on PC's with SCSI drives for the working hard drives instead of IDE. It's cheaper and more expandable. I have a very famous freind that uses his sony VAIO laptop to record full songs when on the road! You could do that on a Mac laptop but let's be honest, there's more power in PC laptops these days.
I only have one thing to say about Non media Mac usage...
No Right Click?!?!