Can't wait to hear the difference, the Denon AVR gets great reviews for the price.
I bought the AVR1912 with a Tannoy 5.1 setup a couple of months back, does sound very good compared to a friends onkyo, it sounds a lot brighter at the top end. The Audyssey Multi EQ helps with that I think and it's what made my mind up when purchasing. Certainly very happy with mine.