I participated in this exhibition and forum in Nancy, France last month. While it mostly featured art created by additive RP machines, some of us (like me) showed examples of sculpture done with CNC as well. I wrote up an illustrated article about it for my blog, with links to participants; check it out if you're interested: http://www.computersculpture.com/Pages/Index_Blog.html
Digital Tools for 3-d Artists
Cool stuff Andrew!