Jason, welcome. In your present room size(and even in a fairly larger future location)you might save a bit by using QS4s and I'd also suggest that you consider a vertical M2 center.
The PB12(or any other component)can't "overpower" the rest, since you calibrate the levels to match. Nevertheless, again considering room sizes, the PB10 or other similar should be plenty for your needs.
The 659 is excellent and a real bargain. You might also consider the Onkyo 604 in a similar price range.
My thought is that the high-gloss cherry upgrade requires a special order and isn't available from the factory outlet(which incidentally uses "new" speakers, but with possibly a slight cosmetic blemish), but contact Axiom directly for specific information.
