You're on the right track with the components you picked, maybe you could just scale it back a bit to fit your budget.
That Receiver is an absolute beast. You could get a Yamaha RX-V model for about half the cost that would be more than capable of driving those speakers. Even the RX-A720 would save you about $200. The speakers you picked out seem reasonably priced for what you are getting. If you did a little digging around the internet you may be able to find them on sale or even find something comparable for a little less.
Your next option would be to look into package deals (AKA HTIB) that include a separate AVR and speakers. Stay away from those all-inclusive HTIB's that have a blu-ray integrated into the receiver, you will get much better performance from a standalone AVR. Check out Yamaha, Denon, & Onkyo they all have packages that should fit your budget and would absolutely blow away the Bose system.