Prof Hat - I have similar question.
Just obtained a PS3 and picking up my Onkyo 875 tomorrow (couldn't justify the extra £300 for the 905
).
I take it that as long as I connect the Amp and PS3 together via HDMI (and ensure the audio is output via PCM and not bitstream), the Onkyo will do the business in terms of HD audio?
Panny TH42-PZ85, ONKYO 875, MA RS6AV with RS1 rears, PS3 60Gb, XBOX 360 Pro, Toshiba HDEP-35, Cambridge Audio Azur 640H, Musical Fidelity X-Ray v8, QED Silver XT, QED Performance HDMI, Chord Chameleon Silver inter, Tacima CS929.