Suggestions 4 surround processor w/newest formats.

Hi all,
I'm looking at finally upgrading my ol' reliable surround processor (Legacy-Audio NexStep) to something with all the new HD-Audio formats. Any suggestions as to which way to go?
Have been internet searching Krell, Lexicon, Parasound, Halcro etc.
Some of my associated equipment...
Amplification: Legacy-Audio monoblocs.
Speakers: Infinity Prelude MTS.
Digital: Marantz BD-8002.
Any other info about my system that would help with suggestions please let me know.

Thanks all @ A-gon,

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