I have been doing DVD cover artwork (on Photoshop) for a company that is now going to be doing board games, and they would like for me to design 3D drawings for the game pieces. I know nothing about 3D programs, any suggestions for the most simple route to go? I work on a Mac, and I just need 3D renderings. They don't need be animated. What would be the simplest program for me to learn? Thanks.