Quote Originally Posted by Starlord View Post
Free or open source.

http://www.sketchup.com/

http://www.123dapp.com/design

https://www.tinkercad.com/

http://www.freecadweb.org/

http://www.openscad.org/

Turbocad can be purchased for $40.

http://www.amazon.com/IMSI-TurboCAD-.../dp/B005576Q6U
Wow, that's great! Thanks!