I've attached my living room layout. There is a pretty big volume to fill here. The front wall is 30', 16' of it is part of the theater area, there is a wall (in green in the picture) that separates the living room from the dining room, however, it is only 4 1/2 foot or so high. At the very end of this wall, where it opens for a walk through, is a piller about 8" x 8" that goes all the way to the ceiling (10' high).
Currently I'm using cheap direct radiating speakers, on stands that just barely clear the height of the couch (34" to the top of the couch). I've been reading about Dipoles and I know you all have been suggesting them and actually I think I would prefer them, but here is my problem. The right side surround would be against a full wall (to the ceiling), it wont be exactly 90 degree from the listening position, I have a door and a window. The door is about 3' behind the listening position and exactly 90 degree to listening is where the window ends, I say the listening position is flush to window. I'd have to mount the right side maybe a couple of inches behind the listening position "null" spot.
On the left side I think I have a worse problem. The side wall does not go to the ceiling, so I have no wall reinforcement (I don't know if this is bad, just wondering). I'm thinking I'll have to mount this to the pillar I mentioned, which is actually probably a foot in front of the listening position. I also thought about getting stands, although its hard to find something that will make sure that the speaker is above the couch height of 34", maybe a 36" stand would work and is that high enough if my ear's are level around 35-36"? Without the full side wall on the left, and the possible disruption of reflections in the kitchen area, would dipoles still be recommended? Would I be better off with direct radiating?
Also, If my surround are @ eye level or even a little above, is it still ok for me to ceiling mount the Rear Backs and aim them down towards listening (I cant really put them against the back wall they would be in the kitchen, so I'd have to make the ceiling into a virtual back wall.