06-27-09: StringreenThat's how my systems have evolved too. The HT system is a 7.1 system that evolved out of a stereo I built up 12 years ago.
After much experimenting, I found that I needed 2 totally separate systems. The Surround sound is in one room, and the high end stereo in another.
In the meantime I had a modest 2-channel system in the living room for quieter music--small group jazz, acoustic pop, and chamber music. When I switched this system to LP-based, the result was so much more musically satisfying that I upgraded the entire chain, making it a 2-channel music-only system that scales reasonably well from solo to orchestra and big band.
I use the 7.1 channel mostly for HT now except for the occasional multichannel SACD and DVD-A. I do almost all music listening on LP in the 2-ch. living room system.