There is a new version of Winamp out. It was so good I updated from 2.81.
Stream music and video from your box at home over port 80...
You can even setup preferences on what format stream you want on each computer. I even got it working on my Nokia 770.
Are not free downloads fun?
Edit: I forgot about mentioning the web browser... Or that this version plays video.
OR that while playing music V5.5 is using 15mb... Sure that is 3x 2.81, but I'm not complaining.