As far as whether it's crippled, I found this note at
the website:"The Maya Personal Learning Edition restricts users to non-commercial applications through the display of a watermark on images as well as through the use of a special non-commercial file format."
"Non-commercial file format" sounds like whatever you produce in Maya Personal won't be transferrable to other 3D apps like Lightwave or Carrara. Still, if you don't mind the watermark on your images, it might be a way to do some 3D stuff.
(Oh, and there's also a version that runs on Windows 2000/XP Professional.)
BTW, I wouldn't say that being a Mac user limits your 3D options. 3D Studio Max is the only major 3D software I've seen that
doesn't come in a Mac version. What you're willing or able to pay for a 3D app -
that might be a limit on your options. :lol: