Hi: I have a Macbook AND Toshiba Satellite Notebook. I have a wireless network that works great. (netgear router) I want to play my itunes thru my home theatre speakers. Do I JUST purchase the AirPort Express with AirTunes (http://store.apple.com/1-800-MY-APP...re.woa/wo/1.RSLID?mco=96190CF2&nplm=M9470LL/A) and thats it? and if so, can anyone tell me how great (or poor?) this product is?