Hi, I am a new Mac notebook user with a 2011 MacBook Air; I have had iPods and an iPhone for a few years. Planning to convert our current PC-based (desktop and a couple laptops) home over to all-Mac (adding an iMac and iPad) as $ allows. We have ATT uverse for internet with the ATT 2wire modem/router installed. I would like to get a network established where I can back up my Mac wirelessly to an external hard drive (I don't think I need the time capsule) and print wirelessly (I have a wired printer currently attached to my PC and not adjacent to my ATT modem). I've been reading about the Airport Extreme and using it in bridge mode "behind" the ATT router; using multiple APEs, or disabling the WiFi on my 2wire router and running the wireless network through an APE. I have found instructions for all of this online but am unsure if it's the right step. I am confused by all the options and would welcome any advice. Should I get an APE and attach an EHD and run the APE in bridge mode? If so, how do I connect wirelessly to the printer (another APE?). Bear with me for my confusion, and thanks in advance for any help.