Combining ethernet and wireless connections to Airport Extreme.
I currently have an Airport Extreme connected to a cable modem and am extending the range to the back of my house with a wireless connection to an Airport Express base station. I want to extend the range to my basement using an ethernet connection between the Airport Extreme and a second Airport Express. Will this work? It's very hard to connect the first Express to the Extreme via ethernet but Apple instructions seem to suggest you can have a wireless network or an ethernet network but not combine them. Any suggestions about whether it will work before I got out and buy the second Express?