I have a similar set up and I previous had QED silver anniversary but then got my hands on Nordost Flatline Gold Biwire and I much prefered the sound, more detail, speed and agility, also can be revealing with certain set ups but works well in mine and has very little hint of brightness.
Koogs, what do you make of your set up, are you pleased with it? I'm about to audition and all going well, purchase a denon AVR 2310 and B&W's 685 theatre system. I'm also interested to see what the outcome of this thread is so i get a good impartial idea of what cables to buy.