Thanks for the responses so far. After more and more reading, I am really drawn to the latest Audyssey:MultEQ XT32. Most receivers/prepros seem to have XT, and only the highest-end ones have XT32. My current Marantz has plain MultEQ. I am especially keen to have my subwoofer tamed with this improved room correction. So my question now is this XT32 worth it? I've found people online saying both ways, with some saying XT32 is the best thing ever and others saying XT is plenty good. I've found some amazing reviews of the AV7005, and now with it selling for $800 refurbished (accessories4less) it's hard to pass up.
For XT32, the cream of the crop seems to be Marantz AV8801, but at $2400, that's out of my budget. Unless....
Could something like that replace my 2-channel gear? Don't get me wrong, I love my 2-channel setup, but it has significant resale value that could go toward financing this move. Something like a pure digital chain going into the prepro, with it doing all the D/A conversion, room correction, etc. Or acting as an analog pre only?
Anyway, that may be pie-in-the-sky thinking. A more practical and easier solution would be the Denon 4311 receiver (which has XT32). It seems silly to buy a unit with a 9-channel amp when I only need three, but at $949 refurbished, that's quite a deal. And it has a "preamp only" mode where you can switch off all the amps for less noise. Not sure if you can switch off specific amps or not.
Thanks all for your help!