Reader Stories: Have You Created a Wireless Home Audio System with iTunes?

Creating a wireless home audio system using iTunes and the iPod/iPhone is much easier and more affordable than buying a high-end, in-wall system. And, while the iTunes/iPhone/Airport Express is one way to create this kind of system, it's not the only one. Tell us about your set up here: what hardware and software you use, how you set it up throughout the house, and how well it's working. Please respond only if you're using at least one Apple product in your system.