I noticed that Ned was playing with CB design in SketchUp and remembered that I used to have a free cutting board design program called CB Designer that worked pretty darn good. http://www.lastalias.com/cbdesigner/ I lost it when my old laptop died. When I went to download it today my security software removed it as a threat (nothing specific, just that it was old and unreliable--kinda like me). After a struggle, I overrode the security and, following some special instructions http://lumberjocks.com/projects/11372 it started and ran well.
Googling cutting board design software got me to another program called Cutting Board Designer http://www.1024studios.com/cuttingboard.html It's a pay program and I decided to risk ten bucks or so to see if it worked any better. It works as advertised, but I kinda still like the free one better.