I'm Your Guy
I recently installed my 2nd HT -- Denon 3805 and Axiom M60's, with the Axiom center and surrounds that you are thinking about getting. One thing, though -- I didn't go with the Axiom Subwoofer. I went with an SV instead. It was more money, but I didn't want to skimp on the low end after spending so much on everything else.
I do a lot of concert DVDs -- U2, No Doubt, Tenacious D, etc. I also listen to a lot of jazz (Mel Torme, Acoustic Alchemy, Cleo Laine, Ella, Fourplay, Gerald Albright). For movies, I watch SF and action.
Am I happy with the Denon and the Axioms? Absolutely. The M60's are clean and have enough oomph by themselves to sound great. Together with the SV Sub, they sound awesome. The center channel is flat and keeps up with the M60's perfectly. But the real treat is the surrounds. They sound fantastic! I had my system professionally installed and, after hearing my system, my installer said he was getting a pair of the Axiom surrounds for HIS system.
Based on your description, I believe that you'll be very happy with the Axioms.