I'm in a similar situation as the OP, just ordered a Samsung PN63C8000 TV with the 6800 BR player, and I have a Denon 4306 (HDMI 1.1) receiver. I'm thinking that I use a passive splitter or switch on the output of the player, one output of the switch to the TV, the other to the receiver, I also connect the fiber output of the BR player to the receiver. When I want 3D, I set the TV to use the switch/splitter output, and use the receiver to playback audio via the fiber. When I'm watching 2D, (95% of the time), I set the receiver to use the ouput of switch/splitter, and route the video to the TV via HDMI through the receiver and then will also have lossless HD playback.
Anyone see any issue with this path, assuming a passive switch/splitter works without introducing any HDMI 1.3/1.4 issues? Anyone used a similar setup?