...Uh I have no idea, everything I have is free ;)

EDIT: http://www.daz3d.com/products/bryce/bryce-what-is-bryce yes it is very much free but the Daz 3D models cost, so you can either make your own, make do with the free ones or resort to piracy... which i in no way condone... >.> <.< >.>

It's not the best, but it gets you used to a lot of the techniques used in 3D modelling like bump mapping, and the scenes you can create give you such a sense of satisfaction, it's incredible