which monoblock

I went through a similar search, and ended up buying a pair of Theta Digital Enterprises. I couldn't be happier. They are vey musical, and have incredible soundstage depth and width. The instrument separation is the best I have heard, and all instruments/voices are presented in a very natural, convincing manner. For the rest of your system, you could configure a Dreadnaught II as necessary, and have closely matching amplification at a fairly reasonable price.

Audiobugged you are more than welcome, to let me know your thoughts once you audition all that gear,And the rest of you guys, thanks a lot for your inputs.Any other susgestion?

probably more suggestions than your interested in! :)

i used surface wiring for all the amps and speakers. where "surface wiring" means no in wall interconnects and no in wall speaker cables. just cables on the floor. it keeps the runs a lot shorter, and allows audiophile quality cables for every single connection.

i used a stereo amp for the rear channels, no benefit to mono's back there.

after the amps, I used a separate power circuit for the front end gear, feeding a PS Audio P600, and then all the front end is powered off that. the video has a separate circuit as well.

don't under estimate the cooling, especially if you select pure Class A amps. a cooling budget of 2-5 tons, depending on gear, is not unreasonable.

what is reasable for amps depends on room volume. if you don't have the cubic feet, save money, and don't buy the watts. if you do have the cubic feet, don't hold back.

Merge any specific monoblock amp you might susgest?

This is not a mono block option but you could run a Pass X150 with a Pass X3. Never heard Pass amps in a HT set up before though. Honestly I have a hard time picturing these amps in a HT system. Probably other options out there that may be more cost beneficial and better suited towards HT.