Only $10 at warehouse 23 get it here
This comes very close to the way I run Northport.
What you get: 49 pages of how to run a slightly abstracted city that is built within bowshot of a collection of dungeons. There is significant interplay between guilds and a number of powerful (325-500pt) delvers who run the show, with agood feel for how they and your characters interact. No dungeons are presented, but plenty are suggested. It is a nifty and unique setting and a great way to base a campaign.