FWIW I found these Free CAD Programs when browsing for a Free 'something else' . .

I've no idea what these are like, but they all claim to be Non-Cripple Ware and Free.

http://www.cadvance.com/65form.htm

http://www.cadstd.com/dlfrom.html

http://www.graytechsoftware.com/prod...dx11/index.asp

http://www.givemepower.de/FelixCADlt_promo.html

http://www.ransen.com/dexterpen/setup-dexterpen.exe

http://www.justcad.com/downloads.html

Too many to list each one, have a look at this Site.

http://www.freebyte.com/cad/cad.htm
&
http://www.freebyte.com/cad/cadcam.htm