I have just got a new set of speakers - These being the Monitor Audio S6 fronts and an SLCR centre. I am currently using these with my existing eltax HT2 bipolar rears and my Sony STR-DB930 receiver. I am getting tempted to upgrade the amp, as it is about 5 years old, so I assume that things have imroved since then(?!) I would ideally like to spend less as little as possible! People seem to rate Denon amps to match up with the MAs, so the 2805 is probably towards the top of the list or the 3805 if I can find them being sold off to make way for the 3806. I have also seen the Marantz SR5600 for £350 - Is this likely to match well? Any suggestions gratefully received. Second hand or ex-demo would also be fine.