Google SketchUp 7

This is a program that you can download for free, where you can create 3D models quite easily. Iv'e not used 3d s max yet, but this version looks as though it's a lot simpler. So this might come in use when practicing for it. It reminded of of ProDesktop, a program I used to use in Graphic Design. Both programs allow you to create 3D models from 2D drawings.