I third this with a modifier: the same Greg Weaver who is quoted in that Audiogon offer also wrote this review of the Channel Islands Audio D-200 class D amp:
http://www.positive-feedback.com/Issue22/cia_d200.htm
In the addendum to the review he compares the the D-200 with the SM II. Quote: "While I admit that the Musician III seemed to clearly surpass the II in midrange involvement and microdynamic capabilities during my all too brief experience with it (driving the VSA VR-4jrs) at CES 2005, the CIAudio D-200s have so convincingly bested the Musician II that mine was offered and sold on Audiogon last week. And why should that be so odd? Look at the advances in computing power and the subsequent lower pricing today as compared with what was available as state-of-the-art for Christmas of 2002."
The D-200 has a smaller sibling, the D-100. Both are said to have the same sonic signature i.e. the D-200 is just more of the same. The D-100 costs $1600 for the pair, only a hundred more then the SMII offer, but new and with warranty.
But I think we may have digressed a bit. You asked for opinions on multi-channel gear, we reflect on two channel kits.