Someone at work pointed out Pandora to me too. Just be sure that you keep each playlist or album or whatever they call it, specific to one artist. If you put multiple artists into it, Pandora has the tendency to latch onto whatever the last artist was that you added to the album. I'm just now figuring that out. And you can only skip so many songs an hour.
Have I told you that I love you and miss you already? Why can't I either a) have all my friends in one place or b) be able to teleport??