Dayton all the way. There is a reason Polk names their subs PSW. It means piece of s**t woofer. The PSW-10 you should be able to did for no more than $100 new. $105 used is a royal ripoff.
Television: Mitsubishi WD65737 DLP
Processor: Emotiva UMC-200
Amps: Carver AV 806x/Behringer EP4000
Mains: DCM TimeFrame 600 Center: AT 453C
Surrounds: AT 251.1 Sub: Danley DTS-10
Blu Ray: Panasonic DMP-BD655