Go with Sonus Faber, go with Snell, go with.... wait, what's the budget?
If you ever really want to take those Klipsch to the limit, you may want to get a seperate amplifier (the Denon you have has preouts). The Behringer EP2500 is great for someone on a budget, and gets high marks from the DIY enthusiast WmAx here at AH.

It can drive virtually any speaker, at any load (the RF-82s like to dig deep down to around 3 ohms at certain frequencies putting strain on even the higher end receivers).
I hope you are enjoying the crap out of those Klipsch, I know I would be.
