OK, stick with me on this one. What I'm looking to do is plug something into my hifi amplifier that will come up on my mac (which has an airport card) so I can play itunes through my hifi system. I don't have a wireless network set up. I've come across these: http://www.coolest-gadgets.com/20060725/24ghz-wireless-audio-transmitter/ But was just wondering if something simpler was available that only had to be plugged into the amp. Thanks! B.