Oh man! Sculptrist is friggin' AWESOME! This looks much better than screwing around with primitives and polygons.

You're probably already aware of all this stuff but CB Model is similar to Sculptris (definitely not as powerful though) and I was quite surprised to see the Beta version of a program work and look so perfectly polished when modelers like Truespace are on release 7 and are still clunky and sloppy.

If you're not familiar with CB Model Pro you can get it here www.cbmodelpro.com/
It's totally free all you have to do is trade a name and email address for it's unlock key.

MAN, that Sculptris video REALLY wowed me. I tried my hand about ten years back with borrowed programs and I could just never quite manage working with 3DS and Cinema 4D and such. I just don't have the mind for it. I can free hand draw but I suck at fighting with vertices.