polk s60

I am currently using a 2.0 with PolkTSX330t with Yamaha HTR3067. Looking to move this to a HT and build a new 2.0 syatem for my living room of abt 500 sq ft area. I have loved Polks and thinking of getting S60 pair. What is a good amp to go with these? In my area, denon, cambridge audio and...