If you want Denon's flagship models you want the 5805 receiver ($6000), and the 5910 DVD player ($2500). From what I've read on this site (and elsewhere on the web) these are the "schizzle", and the hype is more fact than fancy. The question I would pose to you is whether or not you would get best dollar value from putting that kind of dosh ($8500) into electronics, or get a 3805 and 3910 for $2400 and put the extra $6000 into speakers. Me, I'd go the speaker route, myself (look at my sig.line, and you'll see why).
Bryan...but then again, that's just me...