80'sMan,

As long as the Yamaha can accept pcm 7.1 you will be fine with a lot of Blu-ray players. Many Blu-ray players will decode the audio and send it as pcm to the receiver. Since this is what the receiver would do anyway there is not going to be any difference. The PS3 will do this and is probably the best buy for Blu-ray players anyway. I say save your money and not upgrade your new receiver if you can.

- Nick