http://www.engadget.com/entry/1234000800033985/ http://www.rogueamoeba.com/airfoil/ Finally, we can stream to our AirPort Express(es) from any program! Also, check out the other programs on that site. Quite a few cool ones there. Get the freebies. Edit: Just realised that AirFoil isn't part of the freebies section. The demo works fine, but puts noise over your audio after ten miniutes of streaming. Oh well. At least you can check it out before you buying it. However, apart from the noise-after-10-miniutes thing, the Demo is fully functional.