If you ever want to build a city in 3Ds Max and quickly with low poly models then use Greeble plug in. Simple to use, free and all resources and tutorials are posted on the website.
max.klanky.com Home Page
Also, here is a little of my work using this plug in and some of my own knowledge. Images rendered in Vray, then touched up in Photoshop. Real simple workflow use for the end results.
http://i799.photobucket.com/albums/y...ure_City_4.jpg
http://i799.photobucket.com/albums/y...ure_City_5.jpg
http://i799.photobucket.com/albums/y...City_Final.jpg
Enjoy....