My 2 cents worth...
I'm currently using my admittedly a tad long in the tooth Denon AVR 5700 THX Ultra certified receiver as a pre/pro with my Parasound HCA-2205A power amp and the results are outstanding.
While I don't have multiroom capabilties, and I dont want or need them, in my one room the sound is awesome! (I have a seperate small room HT in the bedroom).
Now comes Parasound with their new stellar "Classics" line of gear. For msrp less than some flagship receivers (which do admittedly have a plethora of multiroom capablities), Parasound's new 7100 THX Ultra 2 certified pre/pro coupled to it's new 5250 (5 x 250 watts rms into 8 ohms and 385 wpc into 4 ohms) also THX Ultra 2 certified amplifier, it blows away ANY new megabuck receiver (and yep, although I love Denon; that includes the 5805) in terms of just pure enjoyable sound. All you need is a good old Rat Shack SPL meter and you're good to go.
In street prices this equipment can be had at substantially less than msrp and after hearing my friend's brand new setup with his EgglestonWorks AndraII speakers, I can tell you THAT is very very hard to forget much less duplicate. Trust me, I'll be keeping my 2205, but as soon as the cash comes along...HELLO 7100!!!
Just my 2 cents worth...
Cheer to all