So, I can see how you want to keep your audio and video separate JMT, but are you losing any sound quality by getting the 3700? While you can buy a $150 DVD player, and you mentioned that you care more about the audio than the video, just going on the fact that if you are in this forum, you like quality in what you are listening to (watching), then you don't want a $150 DVD player, trust me.
At school, I live in a fraternity, and we have a 50-something inch Toshiba HDTV, good stuff, and after we bought it, we didn't have much money left for a decent source (well...aside from the DSS, which also doesn't look that great, the high resolution of the TV just amplifies it's shortcomings) so we bought a $199 Toschiba DVD player. Now, if you're watching a $2000+ TV with a DVD as the source, you should walk in and go WOW, trust me, that's not the case with this setup. I own a Pioneer Elite DV-05 THX certified DVD player which retailed for $1000, I got it as a wise buy at tweeter for $500, that makes you walk in and go wow when I hook it up to that TV. While those are two extremes, there are a lot of good DVD players in the price range above $150 and below $1000, such as the DENON 3700, I think you'd be getting a lot for your money with this changer...
That just leaves me to the question of How does it sound? Markl, you recomend the 3700 syaing it sounds great, bu thave you done an A/B with the 3700 and 370 side by side? I would like to have the DVD capabilities, but I don't want to give up ANY sound quality for it, anyone have any more input on that issue?