If you want to go format neutral in the new HD format war, you are probably going to be best off getting two separate players at this point - the combo players are still a bit new to market and are expensive, and with a processor like yours the separate boxes are quite manageable.

The Panasonic BD30 might be a good candidate for Blu-ray with the 885 instead of the PS3 - unlike the PS3, it'll pass a bitstream of TrueHD and DTS-HD MA, it's Profile 1.1 (although it won't ever be Profile 2.0, which the PS3 should be able to support via firmware update at some point), it is reportedly only a few seconds slower at loading discs than the PS3, and it's a true standalone player with a proper IR remote.

The two OPPO's mentioned will pass all of their supported audio signals via HDMI, although neither have any support for the newest HD audio formats (DD+, TrueHD, or DTS-HD) because they don't support HD-DVD or Blu-ray (the only two formats capable of containing those formats). Are you referring to the HD audio formats from the last format war (DVD-A and SACD)? If so, either will suffice. The 980H will even do DSD from SACD's, whereas the 981HD will convert SACD's to PCM first. Reports I've read indicate that the difference is very difficult to identify, especially since your processor most likely performs a conversion to PCM anyway so that it can pass the audio through the DSP section. And in both cases, the analog audio section is completely irrelevent (digital audio out). For your screen size, the 981HD is probably the better of the two.