Pretty much since I bought my Onkyo TX-SR805 (refurb unit I got for a great deal through Onkyo's website 8 or so years ago) I have not been that happy with it. Everything seems very flat & lifeless. Does not matter if it's music or movies & does not seem to matter which speakers. I've run a host of speakers with them, whether the MTM's that Pete Mazz built, my Totem Rainmakers or Paradigm Atoms. I don't have a ton to spend on HT these days but wanted to see what you experts would recommend. Should I replace the receiver entirely and go with a new unit OR just keep it as a processor/surround amp and buy and amp for my fronts and possibly center as well? I know Totems in general like a good amount of power & high current which I will be using as my mains now. Budget is around $500. Don't need 7.2 or anything special as my living room will only allow for a 5.1 setup. No where to put 7 speakers. It's been a LONG time since i've shopped audio equipment. I'm more leaning towards a good amp and keeping the Onkyo for processing. What would be some good amps (I'm perfectly fine with used) to look for?