List of the best 3D applications

[Vanilla]

not free :D

- Blender
Company: The Blender Foundation
Price: FREE!! (Open Source @ GNU GPL)
Version: 2.56 Beta**
OS: Windows, Linux, OS X, FreeBSD, Irix and Solaris.
Webpage: Homepage | Beta Download

The latest iteration of the series, 2.5 (currently in beta). As a user of this program, I can only recommend it. I've tried all the other applications, but eventhough this one is the only free one, it doesn't lack features compared to the other industry giants. Furthermore, this also allows for real-time 3d interaction, as it includes a very capable built-in gaming engine with physics and versatile API. It is also easily extendable because of it being Open Source as well as relying heavily on the Python programming language. And the best thing: It's 100% free!