Thanks for all the suggestions guys. I'm really surprised the Swan Diva 6.2s weren't mentioned.
From other posts by Craigsub, it looks like those two are pretty similar in sound.
I auditioned some B&Ws 683s and thought they sounded terrible for the music I listen to. I could barely hear the guitar work, and the vocals were overpronounced. Blech.
I've changed the dynamic of my room to fit the new entertainment center, and I may want to opt with towers instead of bookshelves to fill the larger floorspace.