Sketchup 3d Modeller
Sketchup is one of the nicest, and simplest, ways to model something - especially if that something is non-organic. I’ve used it, on and off, for a while now; so it was with a smile that I noticed that Google now is providing a free version of Sketchup. It’s not quite the same as the full pro version, but its a great package and you all should check it out - model your neighbourhood in Google Earth!