I just made the switch from an AVR to using the OPPO BDP-105D to control everything. I bring my DirectTV box into the rear HDMI input, my Roku into the front HDMI input and my Squeezebox into the digital optical input. I take 5 channels of audio out to external amplifiers, including a newly built ST70 tube amplifier for my front left and right NHT Super Zero speakers. I went ahead and got the Darbee because I figured that at the total cost for new amplifiers and the OPPO another $100 was not going to break me. Also, when you get this option, the OPPO is supposed to be able to decode DSD streams, although I have not tried to prove that yet. I have heard that the non Darbee versions do not do this. Go figure.
Going this way removed the Audyssey control of the multiple speakers, but I am not sure that is all bad. I have been able to use a SPL meter and trim the levels of each speaker so that they all match at the center of our couch.
I have the unit connected to our fairly new Panasonic ZT60 plasma display. We have spent some time, but not a huge amount, watching a couple of BD movies and listening to a couple of CDs using the OPPO. The unit replaced our OPPO BDP-83 player, which was no slouch. I think the picture is a little better, but between the OPPO, the ST70 amplifier and the NHT speakers, with the NHT subwoofer, the audio is excellent, although not up to the level of my Crack with Speedball driving Senn 650 headphones.