Adam,
Very nice setup! The 12" sub looks awesome, not to meantion the plasma.
I'm looking into getting a system that is very similar and the high gloss finish is stunning.
For DIY, the 522's mounting is pretty cool, but needs a little improvement.
Maybe adding angle shelves with a "lip" to brace and align the bottom of the 522's to bring it up to par with the rest of the setup?
I hope more people will post pictures of their system. These speakers are beautiful to see in real home settings.
Cheers!
Son