Heya, I've got a nice set of Sony headphones which I use constantly while I work on my iMac. But I'm getting really sick of the cord. I've done a Google search, but most of the results get tangled up with iPod gear. I've looked at Logitech, but their website only lists one wireless headset which has a microphone, but what I want are just some average-priced wireless/cordless headphones for listening to music. Anybody got any recommendations?