Chris, again note that even though the HDMI connection on the 575 can't be used for the audio, if the Blu-ray player has multi-channel analog outputs then it'll decode and convert the HD formats to analog to be sent to the the multi-channel analog inputs on your 575.

Nevertheless, as to a new receiver, the 876 is excellent and there's a report in another thread here today that J&R has it on sale for $899.

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Enjoy the music, not the equipment.