3D Modelling Software: http://www.wings3d.com
Wings3D. I love this program. Very good modelling tool.
http://www.blender3d.org
Blender3D. One of the most popular freeware 3D animation tools.
http://www.caligari.com/products/truespace/ts3/
Calligari give away an older version of their TrueSpace software. It's pretty good.