I want to host my and my wife's itunes libraries so that they can be played on a Sonos without needing the iMac to be on. I am wondering- how can I do this? Will a simple NAS hard drive allow me to accomplish this? Or do i need a full server for it, like say a Mac Mini... Could I use a Windows Home Server? (I will be using that for MyMovies hosting, so it would be nice to setup the iTunes library to be hosted on it.) Any and all direction would be very appreciated!