Eat 3D recently released a new tutorial on character production in Zbrush.
With Michael Pavlovich as your instructor, this tutorial will take you through the entire process of sculpting and rendering a high poly character model in ZBrush 4. From starting with zspheres as a base, to sculpting the fine details, to rendering the final model, this DVD has over 6 1/2 hours of quality training.
Read more about it here: http://eat3d.com/blog/eat-3d/new-dvd-release-zbrush-4-character-production
We're talking about it here: http://www.polycount.com/forum/showthread.php?t=95296
Thanks to Eat 3D and Michael Pavlovich for putting this together.