I have had an airport express set up in the downstairs of my house for a few years. I primarily use the internet in my room (upstairs). Yesterday someone gave me a 2nd airport express. i was thinking I could use this to play my music while across the room.. This is of course if I can connect to my Extranl HD wirelessly using the airport. i cant figure out how to link the two together. Is it going to be possible to have my harddrive hardwired as well as wireless? Right now it is connected to my MBP via eSata. hope this 2nd airport does something for me... after all it was free!