Hi, I'm about to join the 21st century and upgrade from a stereo amp to either a Denon AVR-1905 or -2105. I have currently got a pair of B&W DM601 S2's and a massive Paradigm sub, all of which I'd ideally like to keep. I really only want a 5.1 setup (which I'm assuming is fine with a 7.1 amp...?) due to budget and lounge clutter! So, by my reckoning I need another pair of speakers and a centre speaker. Recommendations for the centre speaker would be much appreciated but it's really the second pair that I want advice on. Should I get another pair of DM601's as the rear speakers, get the smaller DM600's as rears or get a pair of DM602's as the fronts and relegate my current DM601's to the back? All sounds like far too many options to me which is why I'm appealing to your superior wisdom.... Many thanks.