SketchUp is 3D for everyone - http://sketchup.com

Google SketchUp is software that you can use to create, modify and share 3D models. It's easier to learn than other 3D modeling programs, which is why so many people are already using it. We designed SketchUp's simplified toolset, guided drawing system and clean look-and-feel to help you concentrate on two things: getting your work done as efficiently as possible, and having fun while you're doing it.

You can choose from two versions of our software. Google SketchUp is free for anyone, and allows you to build, view and edit 3D models. Google SketchUp Pro adds the ability to share your data with other software, get email technical support, and create professional presentations—both print and digital—from your models. You can download both versions of SketchUp right from this website.