I figure that if anyone was interested in this type of game it would be people here!
I just picked this up yesterday, but man...its fun. If you've never played: basically, you are God at first and shape the landscape of where your city (cities) will be, then you start the city and control the mayor, who get advice from advisors (financial, enironmental, planning, public safety, etc).
You can raise and lower taxes, zone areas, choose road systems, incorporate subways, elevated rail, street cars, monorail, air travel, ferries, sea ports, higways, etc.
You have to keep within your budget but also provide for the needs of your city to keep your Sims happy. Also, if you lower taxes for certain industry...ie High Tech....that type of industry will begin to move into your city, greatening your city's overall wealth and education.
so basically its a game version of what youre doing right now