Ok, to give more details.
I do not think there is enough room between the wall and the screen for my two front mains and a sub. Also, I am buying a 634 which will probably have to go on a stand in the center. My screen is 20" off the floor which might be tall enough for the sub to fit under, but I have no power up front. I would have to run new wiring for the coaxial and the power outlet or use an extension cord which would not be asthetically pleasing.
Hence my dilemma.
After those replys though, I am going to give it more thought on making it work to put the sub up front. I might even shrink my screen to accommodate.
thanks for the help.