FREE PROFESSIONAL CAD SOFTWARE

Found this on the net.

This software is reviewed as a great software that can be downloaded for free.

Personal Learning Edition

Maya Personal Learning Edition (PLE) is a special version of Autodesk® Maya® software, which provides free access to Maya for non-commercial use. It gives 3D graphics and animation students, industry professionals, and those interested in breaking into the world of computer graphics an opportunity to explore most aspects of the award-winning Autodesk® Maya® Complete software in a non-commercial capacity. The Maya Personal Learning Edition software is available for 32-bit Microsoft® Windows® XP Professional and Apple® Mac OS® X (for Macintosh Power PC or Intel-based Macintosh computers) operating systems.

This is the site where it can be downloaded