I started out about 3 years ago with my first 5.1 system by purchasing the klipsch quintet III system, a Klipsch sub-12 and the Yamaha RXV665. I have since been upgrading piece by piece to my current system. I have the Klipsch C20, two Klipsch F20's, four Klipsch S20's, and the sub-12. I am still using the same reciever but I feel like I am under powering the speakers. I could use as much as $1000 into a new reciever. I would like for it to have network capabilities, other than that I am up for every suggestion anyone could give me.