Blender 3D's City Generator

I've been on a search for a procedural city generator and I found a free one. This is a big deal because a lot of these softwares run $5K to $25K! You'll typicall see their renders in movies. Procedural software creates and randomizes items like buildings, plants, people, etc. This one needs to run through blender (yet another 3D application but a free one). I'll be hitting up my buddy Ian for help big time here. But here is an early render of a basic cityscape.