Mikinho would be the best
Mikinho would be the best source for the intricacies of the Ceton turner.
But, I have mine installed in my WHS 2011 box. My HTPCs wake up to record, they record to their assigned internal HD and then then transfer the recording to the WHS Recorded TV directory, then I can watch on any PC or stream via remote web access.
From what I recall my old WHSv1 installed a plugin to MC that gave me 2 extra start menu links for my main MC menu, one to see basic WHS stats the other for setting up the recorded TV transfer service(enabled or disabled). Since I have moved to WHS 2011 the main link is gone, but the recorded TV tansfer link is still there and it works, recorded shows get sent to the WHS recorded TV directory just as before after the recording is complete on the HTPC.
I have never mapped the WHS recorded Tv directory as a network drive and tried to record directly to that so I’m not sure it will work.
I don’t use extenders so I can’t comment on waking up the HTPC when then extender wants to use a tuner.
I do know that the ceton tuner does not dynamically allocate tuners to clients. You must assign the specific tuner/s to a client and that is it. The new Ceton provided WMC plugin is smart enough to know that you have already allocated a tuner to another client and will not make it available when you are trying to set up other clients.
If I am understanding what you’re asking correctly, it seems like you want to be able to use the Centon card for both HTPCs and extenders.
An extender would require an operating copy of WMC running at all times if I’m correct. So using some sort of VWare software to operate a virtual W7MC machine inside your WHS 2011 system that has however many tuners for the number of extenders want to use assigned to it might fit the bill.
Again, Mikinho would be the best source of info to set up that sort of system.
I have a fairly simple set up. 2 HTPCs and a WHS 2011 box with the Ceton card installed and networked. Each HTPC is assigned 2 tuners so I can watch and record at the same time on both HTPCs.
Good luck with your set up.