I cringe at the holes in the floor myself....
I was looking at your surrounds and they are out of place, but that pic was taken last year so my advice is really late.
I am buying a house and the way my bedroom is laid out I knew I was going to place my surrounds near the ceiling. I havn't checked the walls yet and I don't know if I can run wires behind the walls or not, but If I can't I have decided to put some crown molding around the edge of the ceiling to hide my wires.