Check out this neat music site. Type in the name of an artist you like and it will play that artist and others like him/her. If you don't like a particular song, just hit the thumbs down sign by the song and it will never play that song again. You do have to register for it, but it's free. It will save all the artists you type in and you can even mix them up a bit.
I've been using it at work for a few weeks now and love it. Right now I'm listening to Nat King Cole (holiday). I'm getting all the good ole boys (Bing, Dean, Frank, Johnny, etc.) singing Christmas songs.