Here is a free CAD program that is distributed by a company that wants to do your milling and cutting work. You can download their CAD software and export your work out as DFX. You dont have to use thier cutting service to use the software.

I know there are other free CAD programs out there, but this is just another option.

http://www.emachineshop.com/download...D-software.htm

I guess it will be a matter of time b4 they remove the program because it is been downloaded more than it is getting them work. You better be quick.