Sounds like my room is very similar to his. Time to get a rug and some flat speaker wire and some speaker stands for the surrounds. Damn corner fireplaces, I hate it. Stupid useless gas fireplace. I thought about ripping the bastard out so I could put my sub there but the wifey was not too keen on that idea.
You can see the 2 surround sound speaker cables running from under the entertainment center to the edge of the rug, but I think its the easiest way to get set up quickly.
M80ti's, VP150, QS8's