Attached Link: http://www.wings3d.com

If you want, you could probably make one yourself, though modeling 'organic' is a little daunting. Look at Dr. Geeps' 'Robox' tutorial, for the basics. Here's a free modeler that I (ahem) use sometimes..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)