SketchUp 7

I used SketchUp originally back in 2003 when planning a garage addition.

The addition had to objectives:

1. A bump-out so I'd be able to park my F150 Crew Cab in the garage which was built at the turn of the century and sized for Model T's
2. A shed enclosure so the kids would have a place to park their bikes.

pics of the plans and construction here: http://picasaweb.google.com/bob.willmot/Garage#

Google acquired SketchUp in 2006 and has made numerous additions since then.

I just stated playing with the latest 7.1 version and there are quite a few new features. Check it out if you are in the market for building 3D models or architectural plans:

http://sketchup.google.com/