Just wanted to update that it appears he has moved over to
http://www.cambam.co.uk/I can also say that CAMBAM is a a very easy tool. I have used the 0.8 freeware version to do some projects. The first was a illuminated sign for my son that I drew and machined in CAMBAM. The others I drew in Autocad, imported the DWG and generated the gcode.
Give it a try.
Jay

Cut out of .5" Lexan. Lit from underneath by blue LEDs. He uses it as a night light. The idea came from Nut&Volts ... see my blog from more details