Looking good man - it's making me wish I had gone the x-cs route now.
Ah, oh well, I'm sure I'm not done with my last speaker purchase ever. At 90db+ sensitivity I agree, those things should sing even with your Sony receiver. My SVS's have a sensitivity of 85dB (87dB for the center) and my ol' Yamaha V361 still manages to push them with just enough oomph that it still sounds great.
Anyway, nice to see my second choice as a working system at last.