Scenario: My internet connection comes into the corner of my house, where my TV also sits. I have an Airport Express as my main router, this also acts as an Airplay client and is plugged into my hifi, also in the corner. My modem ethernet cable is plugged into the WAN port on the Express, serving my internet connection wirelessly to the rest of the house. Recently, I've moved my office to the back of the house, where the wifi signal is weaker. I'd like to boost it and have acquired an Airport Extreme. What I'd like to do is keep the Express as the main 'distributor' for the internet connection (because I need to keep it's Airplay functionality with the hifi), and use the Extreme as the Extender. So, my questions are: Is there any speed difference between using the Extreme as the extender and using the Express as the extender? In Airport Utility, what is the difference between the "Extend a wireless network" option, and manually creating a WDS network? If using the Extreme as the main and the Express as the extender turns out to be faster, is there a way of doing this whilst sharing the internet connection from the WAN port on the Express? Any advice gratefully is received - I am a qualified IT pro (not in networking!), so be as technical with your replies as you like !