Need to upgrade my system. I plan on running paradigm 7's or 9's, which I will pick later, but I need a new reciever. Pioneer Elite VSX-01, VSX-03, VSX-90 or 91 Denon AVR 2808 or AVR 889 Onkyo SR606 or SR706 I want to spend $600 at the most and I can get the listed ones above for about that much, at the most maybe $650. I like the look of the denon and pioneer elites the most but know the onkyo can be a awesome budget reciever. Which should I pick?