I'm not even sure where to start, I'm so lost when it comes to this stuff... Currently, I have a Niles ZR 4630 multi zone receiver for whole home sound to 5 zones throughout the house, basically set up for radio, TV and iTunes. We are currenntly considering a Home Theater purchase Receiver and speakers. Are there receivers that will do both Home Theater and take the place of the Niles? I would like to get something that would keep up in the future.