All great suggestion here. I'd say the Onkyo 606 is the closest match to the OP's criteria, but I'd suggest picking it up at your local B&M store with a good return policy. Quite a few people have been reporting buzzing from this receiver, but it seems like the luck of the draw. It may buzz or may not. If it doesn't, you're good.
The 1909 is a great receiver but may be out of the OP's price range. I think it is very nicely priced though and if the OP can get it for $499, that should work.
Another option is the
Pioneer VSX-1018AH-K. VERY nice receiver for around $475 (Amazon). The only negative, no power to the sub. However, if you have a powered sub, I think this would be the perfect receiver for you. Very nice looking too.