SketchUp - 3D for Everyone
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Lightwave 3D - LightWave 3D combines a state-of-the-art renderer with powerful, intuitive modeling, and animation...
ZBrush - ZBrush is a digital sculpting and painting software solution.
Sketcher 3D - Sketcher3D is a 3D modeling, design, and fun physics sandbox.
DAZ 3D - Daz 3D, 3D Models, 3D Animation, 3D Software