I'm somewhat in the same quandary as you. The two players I've looking at are the Denon you mentioned and the Yamaha DVC-6770/DVD-750. The Yamahas are 5 disk players. Pretty solid construction from what I can tell on the outside. The casing on the Denon, while it has better DACs, feels a bit cheap. Those are my current candidates. Beyond that .........
IMO, the new formats are realistically a year off for all practical purposes. I plan to wait for a decent universal player that plays both BR and HD-DVD, or till one of them just goes away and dies.
If you currently own a number of SACD or DVD-A recordings it is, again, IMO worth the investment at this time.