So a couple years ago I took the plunge on a 200 Bigfoot + RS850 + RS450 5.0 setup and couldn't be happier. The 450s were killer for surrounds, but now I've bought a house, and the living room / sectional won't allow the 450s as surrounds without gaudy stands and an odd presentation (floor standers lifted up 18"). The RS850s provide enough Bass for now, but may get an SVS supplement.
The real question is that since av123 has shut it's doors, I need to find suitable surrounds to go with the 850s. I like listening to records, and watching movies, but 5-channel stereo isn't a requirement. The Denon 3311 does it's job pretty well, although the 850s can be power hungry little monsters.
I'd like to stay ID, and since I'm moving away from big guys due to placement issues, something "smaller" that I could put on a wall would be perfect. I saw the QS8s from Axiom that I can get in a rosewood finish to match the 850s, but are there any newcomers in the past five years I shouldn't be overlooking?
As for the 450s, for all you rocket fans, they will not be relegated to service in the basement, likely finding a happy home somewhere replacing some klipsches until I can find a happy place for them once again in my house.