Architecture

After my recent successes in importing models into Multiverse I've found myself in something of an architectural quandary. How exactly do I populate a sixty to seventy story tall construct that is meant to function as a literal floating city.

Some are almost a given, the parks towards the front, the operations and maintenance areas down low, and up high, and the inner curve being populated with shops. Even those aren't nailed down in terms of final layout. For most of it though, I'm left with little more than basic concepts of the necessity of schools, hospitals and security.

Anybody out there that knows a bit about architecture willing to give me a hand, or point me in the direction of some good study material?