The system you listed is a great system, but I would audition as many loudspeakers as possible before you take the plunge.
+1. This is great advice. Speakers are way to subjective to start throwing around phrases like "these are the best" or "get these, you won't be sorry." Even if you like them in the showroom they may take on different sound characteristics in your room using your gear. That's why it is best to listen to everything possibly within your price range, take the final candidates home and then return the losers. Not all dealerships will allow this, but many will with the proper coercion. If you want ID, they all offer a minimum of a 30 day in-home trial period with a money back guarantee.
I personally preferred the Onkyo 805 over the Pioneer Elite, but that's just me. I do believe they have better Burr Brown DAC's as well.
Get out there and subject yourself to some gear, and have fun.
Happy hunting.