internet radio

I am new to computer-based music. I am looking for the best quality in sound from internet radio. For right now I am interested in commercial-free Classical music over the internet. Classical Archives has continuous non-commercial classical music 24/7. They state that their broadcast quality is 128-196 kbps MP3. How does this compare with other stations and are there even better quality sources? The sound is really very good and approaches, but does not equal, CD. I am using Vista on a Toshiba laptop>PS Audio Digital Link III. I am excited at this new way of listening and would appreciate any and all comments and suggestions.