I've owned the B&W 703 for several years now in a stereo only configuration. In the next few months (certainly before the end of this year) I want to expand this system into a 5.1 surround. My problem is that in my room and cabinet set up I cannot accomodate the HTM7 centre. Therefore thinking of using the speakers from the 600 series for rear surrounds and centre. Has anyone else done this? How successful has this been? I understand B&W is releasing a new 600 series, with at least one of the centres having an FST mid-range similar to that on the 703. Perhaps that would mate well with my speakers.