Quote Originally Posted by ralphzoontjens View Post
Given it has a 90-day free trial period and not prohibitively high price, I recommend Rhinoceros if you want to get involved in serious 3d modeling. There is a free plugin, grasshopper, which lets you perform amazing math-driven operations on 3d models.
If we are going down the road of proproetry software and Rhino being mentioned then I think Moi3D needs to be thrown into the mix. Code is written by the same guy that wrote Rhino so there is a lot of overlap, it is very simple to use and costs only $295. I bought it and use it a lot, particularly when working with surfaces.