[Comments on RSXs for Fronts and Polk Surround]

I'm setting up a HT and we have Klipsch RSX-4s for Front Speakers and a Klipsch center speaker. We are thinking of purchasing a pair of Polk FXi3s or FXi5s for the rear speakers because we've been offered a great deal on them. Can anyone comment on the mix of the brands?

[Where Can I buy SWS Subwoofer?]

I have a ProMedia Ultra 5.1 and I've been searching to buy an SWS subwoofer to add to it. Does anyone know where I can purchase one?

Thanks