Oh my God!!!
I had always wanted to have such a tool. Modelling 3d graphics was never so simple and effective and faaaaaast.
Here is Sketchup from Google. Simply superb tool for modelling in spaces. Developed for the conceptual stages of design, SketchUp is powerful yet easy-to-learn 3D software. It is the pencil of digital design. This award-winning software combines a simple, yet robust tool-set that streamlines and simplifies 3D design inside your computer. SketchUp is being used by anyone with the desire to Dream, Design and Communicate in 3D!
This is my home.
And this is the outcome of tweaking around the software just for 15 minutes. Imagine what wonders it can do if we take it seriously. Really helpful when we want to project our thought process in space and time.
Go for it www.sketchup.google.com
Note: from my software wishlist one is down..