Audiophile alert:
Today I discovered that 101.ru has a few dozen stations available in 128K WMA format, all of which really sound quite phenomenal. I'm currently listening to 101.ru "Spivakov Classic(al)" ...very nice indeed! I highly recommend that anyone with a good quality internet hook-up to their music system give the 101.ru stations a try.
Also, the programming on these stations is really quite eclectic for the most part but the performances and recordings selected are really very good and unique. Whoever selects the music has very good taste, I would say. They also seem to consistently pay great attention to audio quality on a consistent basis. I have yet to hear anything sloppily produced and broadcast on these stations.
These stations originate in Russia and are Russian language stations as well, but much of the programming is either in English, other target languages, or instrumental, so not understanding Russian is not a big issue.
This is pretty close to internet audio nirvana for me, I'm finding.