Pardon me if this is a stupid question, I could be making this more difficult than it is. I am thinking about adding an Apple TV to my basement HT room. My iTunes library is stored in a 2.8e iMac in the living room, directly above the HT room. Also in the HT room is an old PC, wired with 10-base-t to an Airport Express (802.11g) which in turn talks to an Airport Extreme upstairs. Also, the aforementioned iMac also talks to the Airport Extreme for internet. My wife's macbook (older, 802.11g) also talks to the Airport Extreme. Sooooo, my question is- will the Apple TV and iMac talk to each other over 802.11n speed, or will the presence of slower protocol devices somehow muck things up? I remember reading that the speed of the Airport Extreme is reduced for "n" communication when "g" devices are present. Thanks for wading through my mess, appreciate any help you may have.