How does one prototype a physical product?
mhb: For 3D modeling, I like Rhino (http://www.rhino3d.com) ($800). The support the company provides on their usenet group is unbelievably good and there is a huge community of extraordinarily helpful users.Shapeways for rapid prototyping (http://www.shapeways.com). Many people who use Shapeways use Blender which is a free 3D modeler.