A couple of months ago I began installing my home theater in the parlor of my house. I installed a Sharp DLP projector and ceiling-recessed screen. I next decided that I should upgrade my receiver from an old Pioneer with Pro-logic. I am currently looking for a good quality 7.1 channel receiver, probably Thx certified. I've been seriously considering the Denon avr-4802, the Onkyo nr-900, and the Pioneer Elite vsx-47tx. I would like to know your opinions on these receivers or any other receivers or separates in the same price range.