I found this interesting post on another message board:
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For those of you who are Winamp users and broadband subscribers, as I am, I listen to Shockwave radio (free high quality streaming music, WITH ID3 Tags). Anyway, I found several stations on thier site that have become my favorites and used it as a reference tool when I was watching the tunes and would write down the song names and go from there. The other day I stumbled upon a program on CNET called Stream Ripper, and man, this thing is OUT OF THIS WORLD. It works as a simple add-on to Winamp, and it rips every song, WITH ID3 Tag, that the internet radio station plays. EVERY SONG! Forget downloading, writing down, searching for songs, etc. Put the station on before bed, press the rip button, and you wake up the next day with several hundred crisp 128-190 bit songs, with ID3 tags, categorized (and even dumps repeats into a junk directory). CHECK THIS OUT. I promise you you will be amazed. (You'd think I was an advertisement or something!). I'll try and post the sites to these below...
(For those of you who are new to Winamp...try it, just stick with the older 2.91 version, 3.0 is buggy and slow)
Winamp
http://download.com.com/3000-2139-10199518.html?tag=lst-0-2StreamRipper
http://download.com.com/3000-2168-10152668.html?tag=lst-0-5