Thanks for everyone's advice. It is very strange (but comforting) that everyone had the same advice.
To JohnK : My 485 sounds fine to me, but I often wondered what I was missing by using a cheap receiver. (This could probably be its own post).
To JakeWash: I do listen to a lot of music. But the reason for getting surrounds is for movies. I did notice that some strongly ambient music like radiohead and bjork seemed to benefit from the surround processing modes but for the most part just playing through the fronts sounded better for music. Maybe with the QS4s i'll feel differently. Bottom line : surrounds for movies.
I put in an order for QS4's today!
