Not to interrupt dad's great posts, but let me interrupt him to mention that Tom Waits's new album Orphans: Brawlers, Bawlers, & Bastards (3 discs) is completely listenable and tremendous.
Real Gone, his last release, was great, but some of the songs left me with a headache. No headache with this album, but that probably has a lot to do with all of the fumes from the Despair press....
Here's a good interview with Tom Waits from Pitchfork.
If you don't yet own any Tom Waits, you should start with this album.