I've only been reading Open Threads recently, so forgive me if it's been discussed before.

A band called The Protomen just recently came out with their second rock opera of a planned triology of rock operas based on (and we're talking based on) the Megaman video game. The first is The Protomen: Hope Rides Alone, the second one is Act II: The Father of Death.

The first album tells the story of a people who have given up and focuses on the idea of heroism. The second album is more about creation of the robots and the moral struggles that occur. I suggest you start with: The Good Doctor http://www.youtube.com/watch?v=HP2NePWJ2pQ