Thinking $500, but don't really know what I can get for different price ranges at the moment. Only have 5.1 at the moment. Don't expect that to change unless I get a dedicated HT room someday, which would likely come with another new receiver at that point.

I can do a 2nd zone today, but have never used it, so 1 is fine. Receiver is mostly used for TV/movies. don't often have time to just sit and listen to music anymore. Music is mostly for the car.