Solutionware has a CAD/CAM program that will output Mazatrol and it works for the Integrex machine. If you are going to program in G-code Edgecam is an excellent product, but I think the technical support isn't the greatest unless your reseller is strong in that area.
I have used correl draw to do this. I believe there are also some shareware/freeware programs that will do this that you can get from download.com, but I have had more limited success with these programs.