Hi all, I recently got a great deal on Polk speakers at Circuit City just under a month ago. For my surrounds, I went the FXi30's, which sound wonderful, but I was thinking about returning them for the RTi38's since I can get them for the same price new. The 38's use a bigger woofer, and can handle more power than the FXi's. I'm not too concerned with them not being bipole/dipole speakers. What do you all think?