That's a nice little tutorial, Jezelf. You should cross post it to the tutorials section!

Bear in mind that in real life, when city space gets compressed, individual buildings tend to develop into blocks containing a number of habitations. The way I see it, making a fantasy city with lots of buildings which looks credible is always going to take a lot of time, particularly if you want to imbue your city with a particular character. I had a play with the Roleplaying city generator and found the results to be pretty blah on their own, and slightly better when played about with an image editor. Unfortunately the image editor won't turn a bad layout into a good one, and it's the layout, density, topography and demographics which are all important factors in making a good city.

No easy answers from me, I'm afraid.

cheers

Ravs