I've been considering buying an Airport Express as a wireless way to connect to my stereo. But I have a few questions: 1). Will the AE allow me to play CDs from my computer onto my stereo (not just files within iTunes)? 2). The AE will not itself be connected to the internet, and I don't have an Airport base-station. Will it still be able to stream? Will it extend the network of a non-Apple base station?