Hi Audioaddict,
I reckon the 8000Ms would sound pretty good with the 8200CDQ personally - I had mine hooked up to my old 8000P before trading that up and it sounded pretty fine, so I imagine the Ms would only be a step up. Apparently the 8200Ms do a great job, but at 2 grand that's quite an outlay when the 8000Ms probably wouldn't be all that far behind. Also, apparently the Quad 909 is a good match too.
As for hooking up your laptop, I hook up my Macbook Air via the USB input to listen to HD tracks and the iPlayer, so yes it's possible and sounds brilliant, although obv sound quality is going to depend on the quality of the broadcast. I normally listen to radio through my Sky HD box, connected via optical, so couldn't really comment on the internet quality, although the Sky is vastly superior to internet radio broadcasts of the same station when listened to through my Sonos ZP90.