I just bought the monitor 70's for the front and 60's for the rear. Now I'm searching for a receiver but I have no idea what to look for. I tried to go to fry's electronics to get an idea but I think he just confused me more. It will be a 5.1 setup. I don't want to spend more than 500 but I will. I want to do it right the first time and not look back and wish I had gotten something else. Any info you guys can give me would be very helpful. Also the Polk audio CS2 doesn't look like its available anymore, what would be a good substitute.