I'm looking for a solution (software and hardware) that allows me to stream the computer audio and possibly the video too to a device which I can connect to my stereo or TV.
I'm not interested in solutions based on AirPlay since this requires you to use iTunes.
Other solutions use VLC – the thing is: Those do stream content (a file), but I want to stream the general audio output, so if I'm watching a YouTube video (or Vimeo, or a Skype call) I want to hit a button and then I have the sound sent to my stereo.