[GamblerZ]

1. Have the alternator tested for proper charging. Most places do this for free. (ie. Autozone, Checker, etc.)
2. Are your belts still intact? You may have thrown a belt. It happens.
3. Have you tested the battery? It may be shorted out and no longer holding an adequate charge to restart? Replacing the battery with a new one is only minor investment.
4. Meanwhile, if the battery is operating properly, have you put an amp meter on the car yet to determine if there is a drain after everything has been shut down? Perhaps you have something still running after the car is shut off?
5. Make sure that your ground wire is properly connected.