As someone who has followed Laura's posts on AVS as well as here, I have to give a big group hug to everyone here who tried to help out.
While the AVS Forum quickly devolved into an argument about amplifier quality and then split into fifteen different unrelated discussions, you guys actually worked through and tried to help Laura solve the problem.
Laura - for what it's worth, I think you made the right decision and should be happy that you figured out you don't "need" the amp while you could get rid of it for only the cost of shipping. Plus you now don't have to play the "what if" game with yourself and can be happy knowing you've got a great sound setup. Upgraditis can never truly be cured, but at least you've generated temporary immunity to separate-amps-disease.
PS: Some of the things I hear about Emotiva's customer support are amazing. "Noise like this is normal in these kinds of amps" What?!