IMService has released DeskPCB. This low cost CNC software program
creates trace isolation cutting paths for cnc milling or routing.
Outputs toolpaths to G-code or 3D DXF files. Also can convert Gerber
trace outlines to 2D DXF contours. Handles Excellon drilling files.
There is a free working demo at
http://www.imsrv.com/deskpcb $95.00
Best Regards,
Fred Smith - IMService