[gregc]

OK, just to confirm...
You were driving and all was OK
Then you weren't able to operate any power accessories
Then the dash lights came on
Then you shut down and weren't able to start again.

You're most likely going to be replacing the alternator. Obviously you'd want to check the alt belt, and see if there's an obvious broken connection, etc.
Back in the day you'd have been able to keep driving, but today's computer-controlled engines need juice for the ECU, etc.

If you're adventurous you may be able to find an auto electric shop to diagnose the alternator itself (or buy brushes and replace them) but no mechanic in the world is going to spend 2 hours rebuilding an alternator (brushes cost $1) when they can sell you a new alt for $230 and charge you book labor to swap it out.

Good luck, let us know how it works out!

Greg C