Streaming soundcard output to a computer over network

Hey there, there's a similar post in here somewhere but this is a more direct question. How can I setup a simple client-to-server audio-streaming solution that will take mear minutes to setup? I want people to be able to play their music using whatever program or web-site they want over the local network to the stationary computer connected up to my sound-system.

I found something about Virtual Audio Cable & Axia IP-Audio Driver but VAC is a bit to complex for me to set up and Axia's IP-Audio Driver is impossible to find.
Anyone got a solution to this?

I'd love to know the answer to this. I'm trying to find a way to play a song on our main computer, but to have the sound output that's going to my local computer's speakers to go to every computer in the house.

What I definitely do not want is the option to share mp3 files with the other computers in the house. That's easy. This is much more difficult.

I want to listen to the same song at the same on multiple computers. I know I can use Winamp + Shoutcast or VLC to stream audio files on my computer, but what I'd really love is to do it with Pandora.