Let's not forget http://3d-coat.com/

 

Used it in the past and it's awesome, much more affordable then zBrush and compared to zBrush it's innovative and easy to use..... but that's just my opinion.

Artwork and 3DToons items, create the perfect place for you toon and other figures!

http://www.renderosity.com/mod/bcs/index.php?vendor=23722

Due to the childish TOS changes, I'm not allowed to link to my other products outside of Rendo anymore :(

Food for thought.....
https://www.youtube.com/watch?v=pYZw0dfLmLk