Is there any way for you to mount the TV at a watchable height?? The TV over the fireplace "looks" nice from a designer's point of view but makes for lousy viewing. And you're better off wall mounting the center channel than mounting it in the ceiling. And if you've heard DefTech and love it, then go for it. But if you're basing the love off of reviews and recommendations, better go audition before making up your mind. The mantel is only 53" up so its not super high, TV will mount a few inches above that and I am using the low profile Sanus VT-25 which has the tilt feature, so TV will be angled down (can do about 15 degrees of tilt I believe. Hopefully this will work, and I am going plasma so the viewing angle should be better. For various reasons this is really the only place the TV can go in the room, one wall is totally open to kitchen area, back wall is almost totally open to foyer, other wall has three windows and a door to a porch taking up pretty much all of it, so that only leaves the fireplace wall. I would love to put the center beneath the TV, but that also is close to impossible the way things are set up. The in ceiling center I choose sounds really good for a inceiling imo. It is angled diagionally out, instead of straight down. When I listened to it, there was no way of telling it was in the ceiling, even though I knew that was where the sound was coming from, it was very strange. As for the Def. Techs, I have listened to them numerous times now, both against the ML's, the B&W's, and the Paradigm's, and thought they sounded better than all of the above. of course that was listening to the comparablly priced versions of those other brands. I am sure the next level ML's for instance would blow the Def Techs out of the water, but I am not looking to spend that kind of dough, especially as I do not consider myself an audiophile, but more as just a person who enjoys music everyday and entertaining.