I got bored recently and made a bunch of playlists on MySpace. I'll try to rotate good music through in case anyone is interested in listening. I'm still trying to figure out if there's a logical way to link to them here, so stay tuned.
One of the playlists I made will have samples of the bands I mention when I list upcoming shows. That's here.
I don't know if this will be useful, but like I said, I was bored.