3D Studio Max
3D Studio Max (3dsmax) is a 3D modeling, animation, and rendering tool.
It is owned by Autodesk, an United States (San Rafael, California) based company.
More information about 3D Studio Max can be found at: http://www.autodesk.com/3dsmax/
Note: A free 30 days trial version can be downloaded from the Autodesk site.
Some 3D Studio Max forums: