Disclaimer: I have the original Reference series, not Reference II.
Go for the RF61 instead of RB61, the Klipsch floor speakers sound so much better than the bookshelves when it comes to movies. And get the RC62 instead of the RC52, one thing I definitely regret was getting the RC52 instead of the RC62. The RC52 are just too small for me! For the subwoofer, I have the RW-10D, and again, I should have got the RW-12D instead. Don't think they make the RW series anymore though. Go for the SW-112 if possible.
Judging from the fact that you picked the RB61 instead of 51, I'm assuming that your room is of decent size (700-1000 sq ft), the set up should be more than enough (but please go for the RC62 and the bigger subwoofer!). The Klipsch speakers are great for movies but they SUCK for music. Good luck!