Thanks guys for the advice, I will definately take all of this into consideration when finishing the stage. I may shorten the overall length of the stage so the sub can sit on the floor along the left side of the room, and just have my mains/center on the stage. I really need to get the room carpeted first before I complete the stage. Yes, Mark I will be carpeting the stage to match the rest of the room, as well as my risers for theater seating. Insulating the voids within the stage is a good idea. In regards to the wiring, yes I will keep the 12-2 AC line away from the speaker wiring to reduce the chance of an interferance.
Off to the basement to work, dang it is cold today here in Iowa. Using my miter saw outside is going to suck....
Randy