Lego Digital Designer

I downloaded a version of the Lego Digital Designer as it is an example of an immersive environment. I found this piece of software very realistic and easy in terms of relation to the real life Lego bricks. As you would expect the tools are very limited compared to an advanced 3D modelling software like Maya or even Google Sketchup. They have the whole range of Lego bricks available and the software can detect if two bricks can physically be put together, if they do not, it will not allow you to place them together. Its just as much fun to play with as real life Lego, but without the mess and is very easy to use. Here is what I have managed to createin a matter of minutes using the "starter models" and "bricks" tools