This site has current and links to upcoming MC SACDs at the bottom:
http://ourworld.compuserve.com/homep...a/msacdnow.htm
This one has current SACDs (MC and Stereo) and coming soon:
http://www.sa-cd.net/home
Besides what Lewis noted, sites like
www.elusivedisc.com also have what is coming soon for sale.
www.highfidelityreview.com is good for info on both formats.
This site has good info too:
http://www.quadraphonicquad.com/ and links to stuff like: the above sites and
http://www.greatgig.com/quad/dvd-a-list.html which is about a yr. and a half out of date on DVD-A releases.
Then there is this for DVD-A:
http://www.dvd-audio.org/
and this site has some good info too:
http://www.dvd-a.dk/start.php?Lang=1
Dale, for some of the reasons you noted, I prefer 2-channel on most things. Some of those mixes collapse the sound stage or add ping-pong like effects to the rears.