Nice rig, and nice room!
Sounds like you did a lot of homework along the way.
Can't wait to see your pictures!
My guess as to your next upgrade is not even worth putting forth, in the light of your thorough and carefully executed strategy so far. You've got a purist 2ch pathway, with top flight video gear working along side of, but not getting in the way of the 2ch. The room must be a contribution most of us can't even begin to imagine, and can only hope to play with to the extent you have. BTW: if you haven't chatted with Albertporter about his room, you two ought to have a lot to talk about - he tweaked his room pretty seriously too.
Ok, since you DID ask, and since audiophiles just can't stop eyeing other kid's toys, here goes a wild guess: speakers?
