Not many receivers will be able to deliver that amount of power into five channels let alone two channels that would meet your budget. Denon's new "X" receivers are just rebrands of their existing xx13ci models. The power output will be the same but there might be a few more streaming apps and maybe a bump in room correction.
The power specs on Denon's AVRs have been poorly-stated for at least 5 years now. They are following the trend that HTiBs have been using for a while. I believe the X1000 is going to be equal, power wise, to the AVR-1913. Those ratings are 70 watts x 5 and 52 watts x 7 into 8 Ohms.
I'd look for something a little older, like a Denon AVR-3312ci/3313ci that also has the ability to add external amps. You will probably only get maybe 90 watts x 5 BUT you can add an external amp later on if you have the rack space.
HD-DVD = 94
Blu-Ray = 120 ( 24 Warner red2blu )