EverybodysMusic.com looks like a nice mix of stations. An all-Beethoven channel, a Big Band channel, an eclectic music channel (Radio Kava — Brad Kava, perhaps?) and classic country (KRTY Classic).
Another great eclectic station is Radio Paradise. All the way from a 128K MP3 stream to a 20K WMP stream suitable for dial-up. Free, or, actually, listener supported, and started up, I believe, by the original engineer who put KPIG on the Internet waaaaay back when.