I recently bought a macbook and would like to set it up so that itunes and pandora can play through our home stereo - wired or wirelessly, I dont care (I don't own an iphone or itouch). I own an ipod shuffle but between not having playlists and not being able to use pandora, I thought it would be better to hook-up the computer, but I don't want to have to take the computer upstairs everytime I want to listen to music. I don't want to run any more wires, if possible. The current set-up is: -a macbook -a wireless linksys router -a receiver all major inputs but being about 5-years-old I don't think it has bluetooth or wireless built-in -every room has cat-5 and cable running to it from the router. My questions: What is the cheapest way to sufficiently play music (itunes and pandora) to the stereo, either wired or wirelessly? (I realize that I could buy AirPort and 3rd party software, but I'm hoping to spend less than $125, especially with the hardware I already have). TIA!