Best XBMC Compatible 5.1 Surround Under $1,000?

Hi Guys,

I'm looking at adding surround sound to my XBMC setup, however, I don't know quite where to start.

I'm looking to spend under $1,000 total for Receiver + Speakers and I would like the setup to include:
- auto calibration (via mic)
- wireless rear speakers
- obviously XBMC fully capable

Any recommendations? Tips?

Thanks so much,

Owen