I have the same TV in my basement, a full paradigm setup, but I have Phantom v.3 towers in the front, A CC-270 center, and I forget what series rear satelites with a PDR-12 subwoofer. I love it, the only thing I would change with yours would be to move the fronts to the rear and get decent Floor standing paradigms with more range.
Upstairs I have a pair of PDR-10's and one isnt enough but both turned down is perfect. Or if I feel like making my house into a club I can turn them up and knock stuff off the walls.