AM/FM Reception in a steel building

An alternative, is to think about using internet radio. There are more and more digital media players that use a Ethernet or wi-fi network and can directly access radio from the internet like the Phillips SLA5500http://www.streamium.com/products/sla5500/ or the squeezebox http://www.slimdevices.com/, Roku have a good reputation as well http://www.rokulabs.com/products/soundbridge/index.php

The wi-fi quality is still something to be worked on , but the Ethernet link looks to work fine.

I would love to do that but they won't let us run the steaming audio because they say it takes too much of the bandwidth and those internet radios are too expensive for me and most of the other people there. I'm suprised these days that someone hasnn't come up with an easy way to have an antenna on the outside of a building, bring a wire to the inside to some kind of transmitter that would braoadcast radio signals that could be picked up by radios.

You need a repeater antenna inside the building.
Put one on the roof and then cable it down to an antenna on each floor.
Use bloody good cable. RG223 or RG400 or similar is good.
And make sure the antenna is a high gain one.
The floor antennas need to be wide spread but you will still probably need some others cabled off them to reach dead spots.

This is the hassle you get for being in a Faraday Cage.

You don't need amps this way either.