Just got a Sumo Bag, always wanted it since the NG Office got theirs >: )
There's a summer motion graphics and animation demo reel coming along, as well as an idea for a zombie short.
On other news, Sculptris is awesome www.sculptris.com
It's free, exports .obj files and supports Bump Maps and Textures, with an integrated painting suite kinda like BodyPaint.
That guy below is textured and painted on Sculptris, rendered on C4D.
MindChamber
looks pretty good, is it comparable to mudbox?
Zwickel
I'm pretty sure they can't be compared at all, Sculptris could be described as a sketchbook for 3d sculptors.