http://www.intersculpt.pimkey.com/is2003/3dsc/dsc2003.htm
I think that this is a good place to show “what is ZBrush” to the world…
Hi Richard
No doubt than Zbrush can make somethings 
Stonecutter will be interest for sure by the technic
I have found on your links
These page of Crazzy Virtual Sculptors 
Very organic indeed
Have happy surfing!
Pilou
Ps
Real Sculpture