The Denon is cheaper (I pre-ordered at £749), but the Yamaha (£800) is ready to ship. It's going in the family room, so not really worried about a demo, and not much chance of getting a demo yet anyway.
As you can see from my sig i`m currently using a Yam 2400 with a Denon 2900 dvd player, I`m having a lot of problems with sound dropouts on DTS soundtracks which is why the amps being swapped for a denon 3805 !
P.S It does it on two different Denon dvd players (2900 and 2200)
mine's coming from Krish AV . Not everyone has good things to say about them, but I personally have never had a problem. They have silver 2400's in stock and ready to ship. They assure me they have PLIIx both on the box and the amp. I got them to throw in free delivery - ordered mine yesterday for delivery on Monday.