Home theater system with ProAc Response 1s?

I have a pair of ProAc Response 1s speakers, that I want to use as main speakers in a home theater system I would like to build. I hope to have a receiver/surround sound processor good enough to drive the ProAc speakers for music as well. So I am asking for your recommendation on the following:

receiver/surround sound processor
center/rear speakers
subwoofer

I used to drive my ProAc speakers with Quicksilver monoblocks and Counterpoint preamp. But I sold them all to simplify my life..

My budget is around $1000+/-500. Any recommendation?