I have a B&W 685 system, and want to add some rears to make it 7.1. I haven't got room for another pair of 686's and the DS3's are way over the top for me. I have a Onkyo SR606 with Chord Carnival Silverscreen cables. I was looking at Monitor Audio R45HD's and BRFX's Anybody got any thoughts on these or any other suggestions please?