Tomorrow I'm going to be setting up my new Time Capsule in my home office, and I have a question about extending wireless range via Airport Express. First off, my TC is in my home office which is on my 2nd floor at the front of my house. I want to extend the wireless range to the main level at the back of my house. My current wireless router has a very weak signal - so I'm sure I will need to extend the range to the back of my house. Besides, I have an AE so I might as well put it to use regardless if this TC has a better range. So to the question at hand. My living room has an ethernet cable running to my office. So, can I plug my AE into the ethernet jack (to get the best possible data speed), or do I need to do this only wirelessly? If ethernet is the best route, do I still want the option to 'extend my wireless network' on the setup? Or do I simply create a new network using the same WIFI SSID and password as the one I create on the TC?