I have recently bought a house and I have 5 holes in living room for 5.1 channel plus one subwoofer in-wall. I was wondering if anyone could recommend me some good in-ceiling speakers and an in-wall subwoofer to go with it. Also, what would be a good receiver to go with these? I tried to look but in-wall/ceiling speakers reviews are hard to come by. My budget is $500 for all. Thanks!