I agree - this is very cool.
I had read about it but never seriously tried it until I read this thread. - Thanks for bringing it to our attention.

One thing I find I have to guard against is that I end up listening to my old favorites over and over! I like new music, but faced with a choice I seem to wind up creating similar playlists that have the same old songs! The farther away I am from the computer the better because then I end up listening to the whole song instead of skipping til I find something I know I like!

On a somewhat related note (music and exercse):
http://www.nytimes.com/2008/01/10/fa...441&ei=5087%0A