What do I need to send my music from either my iPod or iTunes (preferably iTunes) to my receiver? There's no optical out on the iPod, nor is there one on my computer. (I don't have a Mac - although definitely considering getting one). I understand there is an "AirTunes", but does this work completely digitally? and does it connect to the optical or coax audio on my receiver? and what is the quality like? (considering buying the shuffle as well, so if anyone's interested in buying a 40GB 4G that's only 3 weeks old and comes with a Marware sportsuit, let me know! - I think Apple.ca has only a 14 day return policy?)