I have Macs in my house, and have two airport express units. WIth them, I can stream iTUnes to stereos throughout the house. I am addicted to Slacker, and now can steam Slacker from my Mac with airfoil (they have it for windows, too). Once set up, it hijacks my browser and streams the music from Slacker to my stereos in the family room and kitchen. SWEET. I have a 37inch TV in the kitchen, with a Mac mini hooked up. From there, I stream Slacker to the speakers in the ceiling....this is awesome...
