I'm building a large, vaulted family room addition (~19 x 20) with a 65" RPTV and fairly high quality speakers/components (Denon 5800, 7 speakers tbd (~ $4K, I currently like the Paradigm Reference system) and have a bit of a dilemma. I was hoping to be able to use an "optimal" speaker placement (viz. timbre matched front towers, center, dipoles to the sides of the listeners and direct radiators behind, but unfortunately the left wall is "filled" with windows, and the right has an open entry into the rest of the house. I plan to use in-walls about 6' apart at 6' high 8' behind the listening position for rear surrounds. My question is this - which is an acoustically better solution? Place dipoles (or directs?) on the ceiling to the left and right of the listening position (the ceiling peaks at 11' 8" and speakers would be at about 11' above the listening position - presumably angled with the ceiling slightly toward the front of the room) OR Place directs on the left and right walls near the back corners of the room very near the ceiling (within 6") do to the design of the right wall. If dipoles on the ceiling are preferred (which is my uneducated guess), do you think the Paradigm ADP design would work well in this configuration? I want great sound of course, but also nice looking towers up front, and white in-walls and surrounds. Paradigm Reference seems to meet all of these criteria, but I'm worried about placement. Any advice on speaker placement and/or speaker systems is very much appreciated.