Greetings PDouglas and allow me to be the first to welcome you to our humble community. There are a handful of us that typically hang out, besides the Men In Black (the guru's who work at aperion)...
i don't think you are going to get much argument from any of us about that system there in a 15X14 area. You are going to have fun with it. To be honest it's going to rock your socks off for movies and just thrill you with multichannel music. Aperion makes really good bookshelve systems that sound real big when they are all working together. And the build quality is no joke.
I have this system minus the Bravus sub, I've got a velodyne. I sit sixteen feet away and the only thing I wish that was better was two channel music. But who needs two chanel music when you have 5 Aperion tweeters screaming at you in unison.
Pay close attention to how that Bravus 8D fills the space in that room. I think becuase the room is open you may get a little bit better fill had you gone with the 10D..But then again I've never heard one.
Well, it's a bit late to be asking now that you ordered it...But hey, I understand. You are eagerly awaiting the arrival of your system so you've gotta do something to pass the time....Anyway, from my readings on the forums the 5B bookshelve systems seem to be very popular lately.
Did you order cherry or black. If you ordered black I can show you some good close ups to wet your appetite