some nice gear there, just wait and try a nice 2 channel preamp someday...it will be a huge leap over your reciever as a pre, you can add one running your Yama thru it on bypass for movies. If you can try pulling your speakers out in the room when you listen to just music. I see you have the Oppo, hopefully you run DVI or HDMI to let it really shine, if you can let us know how it performs.
That is also a very clean well put together system, BW speakers are always a good bet,and Rotel amps are great also..............nice job.