SketchUp Pro

SketchUp Pro is the most intuitive way to design, document and communicate your ideas in 3D.

SketchUp Pro is like a pencil with superpowers. Start by drawing lines and shapes. Push and pull surfaces to turn them into 3D forms. Stretch, copy, rotate and paint to make anything you like. More advanced? Start modeling from CAD and terrain data, photographs or even hand sketches. Build models with custom behaviors and attributes. SketchUp Pro is as simple and as powerful as you want it to be.

http://www.sketchup.com/