SolidWorks works on Mac from what I can see:
http://www.solidworks.co.uk/sw/support/downloads.htm
AutoCAD too
http://www.autodesk.com/products/autodesk-autocad/compare/compare-platforms
Have a look here also:
http://alternativeto.net/software/proengineer/?platform=mac
Hayd
Yep, Ubuntu, etc
You can run Mac OS X 10.9, Windows 8 and Ubuntu on the same Mac, either booting through EFI or in virtual machines: Parallels, VMWare