Even Audacity will work for this application. Make sure your input is "Wave" or "Stereo Mix" or similar. Play your audio stream, and hit the Record button, Stop to finish.
Tom
But he wants to stream the audio online.
Dammit. I thought he wanted to record a stream.
I'm sorry. Not firing on all cylinders here.
www.imeem.com
it's a free account and you can upload any music or videos you have and stream them from anywhere with an internet connection. I have a huge list that I have composed and keep adding to. I just throw it on at work or home. really easy and really fast.