Unfortunately a burst water pipe has seen the demise of my much loved B&W DM603's that I was using as my front speakers, the centre and rears were due for replacement anyway as they did not match. My problem now is finding the best way forward, the fronts will be replaced by insurance but should I go for the logical replacemements for the 603's, (presumably the 684's), and pair them up with the HTM62 centre and use 686's as the rears?. However space for the rears is limited, so could I use a pair of M1's as the rears?. Alternatively should I just go in a different direction and replace the whole lot with either the MT25 or MT30 cinema packages?. The amp is an Onkyo TSXR608 and the Blu-ray a Sony BDP-S570. All reasonable suggestions gratefully received.