I've been looking around at speakers for a while now, and I've more or less settled on the Rti8. They seem to be the best choice for my price range, and I've heard nothing but great reviews about them, not to mention the Polk quality. The one thing I am not sure about is a receiver. I've been looking at the mid-entry level Denon and Onkyo receivers, and I heard Yamaha was a bad choice for Polk speakers. Any advice as to what receivers I should look at? I will almost certainly be bi-amping until I get rear surrounds and separate amps to power the Rti8's. The Rti8 pair will be the starting speakers for my HT system. I am just starting it now, so they will be playing solo until about christmas until I can start getting the other pieces (sub, center, etc), so just keep that mind. I'm looking to keep my receiver budget under $500. Thanks in advance.