CAD software on Mac

1. BRL CAD Open source, free
2. Concepts XXX Free demo.
3. McCAD Free.
4. TurboCAD Free trial. And available in Apple retail store.
5. Archicad
6. Argon
7. ArtlantisR
8. Cadintosh $33
9. Design Intuition $1xx
10. DigiCad 3D
11. DoodleCAD $54.95
12. form?Z
13. HighDesign
14. PowerCADD
15. QCad I am using a GPL version.
16. RealCADD $95 for standard version and $135 for pro version.
17. Google SketchUp (free), from google and free...
18. versacad