So, I am adding a room onto my house and am moving my current HT gear (Denon 3803 and Mirage BP 5.1) into the new room for everyday family viewing. That said, I will be upgrading my HT receiver to something 7.1 (probably Denon 3806 or Yammy 4600) and need a 7.1 speaker setup. I would like to go with in-walls this time to free up some space in my HT, but I'm also trying to stay under $2K given all of the other expenses with the new room. I know I can get 7 Def Tech UIW 65s well within this budget, but I'm not sure about the sound. Thoughts? What about going with 7 BPAs? Also, what is the deal with L/C/R speakers? Is the idea just that you can use three of them for the L, C, and R positions?