Hi, I have bought an iMac 24 inch and a Macbook Pro 17 inch for myself and my spouse respectively. We have been using office Windows laptops thus far at home too, sharing out internet connection through the usual linksys, which is about 4 years old. Now I would like to upgrade my wireless, and I recognized that Apple has its own wireless routers so I dont need to get dlink or linksys. But I am confused about which one I should go for. Here is what I need to do: 1. Play my itunes wirelessly from my room to my living room's home theatre system. Airport website suggests this is possible. I would like to set up the itunes on both my macs to be able to beam music to my living room, separately. (No need to share the itunes library and all that complex jazz.) 2. Do what the old linksys did-- take the internet broadband connection and make it wireless for access through 6 devices, including 2 mobile smartphones, 2 windows laptops, and 2 macs. 3. Print to one central Canon MP800 printer from all the 4 machines, 2 windows and 2 macs. 4. Of course, it may be great if a wireless machine did the above and also became a backup mechanism (time capsule). But this is not a must, only a nice to have. Is my current understanding correct: - If I want 1 to 3, then Airport Extreme should do the job. - If I want 1 to 4, then Time Capsule will do it. I am doubtful if I understand Time Capsule correctly. Would it serve as a backup AND a wireless device that does 1 to 3? Then it may be worth the money. Thanks!