I used to use musicmatch and kind of liked it. I switched over to launch.com, which is now launch.yahoo.com. it was good until yahoo got a hold of it, and reduced the quality and added commercials. If you're piping through a stereo, anything less that 100kb is painful in my opinion.

i like knac.com, but can only take the heavy duty stuff for an hour or so at a time.

-t