Wire a City

Divide the city into population and business centers and run fiber from your backbone to these distribution points.

From each fiber distribution point on a switched interface either extend your point of presence through fiber or via wireless.

Current wireless technology will allow 54M bit/sec. under the 802.11g standard. This would be an attractive deliver speed to your customers.

Luck
0bytes

First of all you should define the major access points where most of smaller branches will get connected. You should use optic cables for connecting major access points. Then you should project the smaller lans and groups of them. LANs should be connected with switches or routing switches. NO HUBS!!!
It is possible, but it requires big investments. would it be profitable...? Thats the headache for your boss...
Good luck

Much Less expensive to co-locate with local telco and lease their copper/fiber connectivity. A lot less headaches too, with digging permits, land buy/lease/rent, building permits, right-aways, etc ,,,,.

Actual eqpuiment see above answers.

Let's see
Yes it is possible.
Though your boss is crazy or VERY rich to want to "Wire Your City".
For Fiber it runs about 20 thousand a mile total.
For Coaxial about 11 thousand a mile total.
Your best bet without any special circumstances is fixed wireless.