I have an Airport Express that I no longer require in my current computer setup, it was only used for about 9 months.. GREAT wireless router, works with either Mac or PC. Has the Air Tunes capability, plug it in behind your stereo and run an audio cable, then you can stream music from iTunes from any computer in the house to the same stereo.
All original packaging included, I reset it back to factory defaults so it's like new. Retail - $99, Used on Amazon - $69 $50 to a good home.