I tend to forget about Lazycam because it comes with Mach3 and isn't
really a separate program.
- Michael
haveblue.org
I haven't tried that one yet. Check out HeeksCAD/HeekdCAM--
they're not well documented yet, but they're under active development.
http://code.google.com/p/heekscad/
Installation for Windows:
http://code.google.com/p/heekscad/wiki/CompilingForWindows
Installation for Ubuntu:
http://code.google.com/p/heekscad/wiki/BuildWithCmakeOnUbuntu
They also have instructions for ArchLinux and OpenSUSE, and OSX.
Should we take up a collection to buy a license for the makerspace?