bigmrs

I am in the market for a completly new system, including a 61" DLP TV and stereo system (Denon, Yamaha, Sony??). I have an older pair of Heresy floor speakers and I want to work with these as the front speakers in the surround system. I am thinking of buying a pair a RB75's for the rear channels and a RC7 for the center and a RW12 sub. Any problems with mixing and matching. I have a LARGE room with 20' vaulted ceiling that I am trying to fill with alot a sound. Help me. I'm so lost and lonely and don't belive anything the sales people tell me. The best place in town doesn't even carry Klipsch anymore. Be gentle with me. It is the first time for me on the forum. Thanks