I downloaded that songbird program (getsongbird.com) that Webguy mentioned in another thread.

It seems like a nearly exact replica of iTunes but it's got one super cool feature that I know JD would like.

It keeps track of the music you have on your computer and whenever any of those artists are scheduled for a conert in your area it puts a little ticket next to their song titles so you can see they are coming to town.

Then you click on the link and it let's you buy tickets.

If you prefer you can just see a list of everyone who's coming to play in your area.  Milwaukee has 199 artists listed today.