I have a AEBS and recently purchased a new Airport Express 802.11N (took a while to get it to do what I want but think its a nice piece of kit now it works). What I would like to do is extend my 802.11N network so there a is a strong signal at the back of the house but wondered what the differences (if any) there were between the 2 options of 1. Participate in a WDS Network or 2. Extend a wireless network Surely they both mean the same thing or am I missing something? I did have a quick play at extending the AEBS to the Airport Express and seemed to get it working although I couldn't tell if my macbook was connecting through the express as I still had a weak signal at the back of the house. The transfer rates of file copies were a lot slower than if the macbook were sat next to the AEBS so it was either not working or i guess the fact that I am extending the network adds lag to it? I cant see as it was this though?