The Denon will be sufficient to drive your speakers. As for the RC understand that there are different flavors of audyssey. The one used in the avr you were recommended is the entry level. IMO for much better results move up to the gold version. Look at accessories4less for a better bang 4 your buck purchase.
http://www.accessories4less.com/make-a-store/item/denavrx3000/denon-avr-x3000-7.2-ch-x-105-watts-networking-a/v-receiver/1.html
