Chazz,
I just ordered up a pair of Lorelei's and a Nemesis center, light cherry!! Anyway, when I went home theater I immediately missed good 2 channel and I've been trying to get back to good 2 channel ever since. I think I've been pretty successful.
The way I have everything set up I've actually got two dedicated rigs pretty much all together. When I listen two channel, it's PURE two channel and the same for Home theater. I took the pre outs for my mains out of the Denon and ran them into the preamp DVD input. Then when I calibrated the system I noted where the volume on the preamp was and marked it with a small piece of tape so that the volume gets set at the appropriate leve. It goes like this
Two Channel
Source - Sony DVP-S7700
DAC - Scott Nixon Tubedac
Pre - Philly Audio Blues 7b - (TUBES!!)
Amp - Odyssey Stratos Stereo Extreme
Speaker - Polk RTA 11TL
Home Theater or TV
Source - Panny DVD player or Sat Box
Processor - Denon 3802 (also powers rear surrounds)
Pre - (Pass thru only) Philly Audio Blues 7b
Amp - Stratos for Mains and Newcastle AM9080 for center and side surrounds
Speakers - Polks, CS400i center, f/x 500i side surrounds, RT25i rear surrounds, SVS CS-2039 w/ 250watt plate amp.
So when I listen to music it's ONLY 2 channel, so it will be pure Lorelei

All this really required was pre outs on the processor and an extra set of interconnects. That's it! Works great and the 2 channel quality is not compromised in any way.