I have got myself really (and I mean really) confused. Problem. Windows Media Center connected to 100w Amp in one room 2 Speakers in same room 2 speakers in another room (directly above) Worked out that I can control WMC using a Wi-fi PDA using something like Niveus Pocket Remote (looks very good) or similar. What is best way to control Amp, more specifically turning on, switching between the speakers in the 2 rooms and volume (pretty basic stuff in other words) ? Most Amplifier remotes are IR. Would a PDA IR extender do what I need. Does IR go through walls (make that plasterboard...). Didn't think it did, but I have seen reference made to this. I always thought you needed line of sight for IR. Do any Amps work using Bluetooth, or Wifi ?? Anyway, I would be really grateful if someone could help !!