Thanks for the idea.
What my original thoughts were:
Notes: I have all of my media stored on HDD's local to the HTPC (no NAS)
I use MC for ALL of my media needs. ie. Photos, Audio, Video, TV playback & Recording as it is so good at it.
I have 2 x monitor zones (TV's with HDMI) with only one active at any one time (I can switch with my IR Remote) as my only Theatre View interface at the moment.
HTPC (which I already have) running JRMC17+
Add a multi-channel sound card (4-6 stereo outputs)
Connecting each of the sound card outputs to NuVo source inputs
Setup each sound card channel as separate MC zones
Play particular playlists or genres to those zones (including a TV channel for TV audio listening only, this is so I can listen to morning show news etc. while I am in the bathroom getting ready for work)
Use the NuVo Essentia as the multi-room amplifier to drive the zone speakers. (in my mind a multi-channel amp seems a better idea than distributed zone amplifiers)
Use the NuVo Keypads to control volume & zone selection in each room
I believe that the NuVo does Zone grouping (linking in MC) if I want the same source in multiple zones
The thing I was most unsure of was if the smart keypads (LCD display) could display track info or control MC via the Essentia RS232 port connected to the Media Server via some command line programming or a plug-in. (I notice there is a plug-in developed for the Russound system.)
I have an iPhone at the moment so am limited to the WebRemote/WebPlay option and therefore am waiting anxiously for the iPhone version of Gizmo. If the plug-in thing above was not possible to implement then I could use WebRemote to control MC but that does seem like a waste of the NuVo keypad functionality.
I am not scared of a little programming challenge but just wanted to know what was possible before outlaying some dollars for hardware.
Thanks