Here's a new work I realised for Zbrush 3 beta testing : the famous Robocop.
The aim was to play with subtools (here, more than 10...), test the mechanical sculpting, and try to achieve the best rendering inside the viewport, in realtime, using the new advanced shaders.

The head was extracted from a classical low res sculpted geometry. For the mechanical parts, very low res elements were exported from max, then subdivided in zbrush, worked in projection master to add all the details.
I found that this workflow was extremely efficient to work complex mechanical objects in zbrush.
The painting was done in direct 3d, inside zbrush.

The new realtime shaders are simply awsome..
Based on photos they are able to simulate hdr rendering...

Here's a 360 directly generated from the viewport:
http://sebleg.free.fr/2007/Robocop1_360.mov

Here's also a clay render that higlights the sculpt work:
http://sebleg.free.fr/2007/roboclay.jpg