If you have a receiver that accepts LPCM over HDMI and the player decodes and will send the discrete 7.1 over HDMI then you are ok. CES will more than likely unvail new receivers with the builtin codecs and HDMI 1.3. However, as long as the recever you have now will accept LPCM then you are really ok.
If you aren't in current need, however, we should definitely see some receivers with HDMI 1.3 unveiled at CES this year.
Mitsubishi 62" DLP
Pioneer VSX-84TXSi
SA 8300HD
XBOX 360
Axiom Epic 80.500 7.1 Speakers