Thinking of shifting from Mac to PC because of a need for raw power. But:
A different approach (all about power distribution basically) would be the Hans Zimmer hybrid studio (or at least as I understand it). In this approach, not only is sample rendering offloaded AKA VE PRo, but the monitoring and mixing too.
This would be based around a 2nd workstation that brings in all the monitoring (could be Protools, or Nuendo or any other mature system)and Ethernet streams. The "composition" workstation would be MIDI only. No plugs whatsoever. NADA. This would give a really snappy system under any OS. I am preeeetty sure this is what Zimmer does, and he evolved this from years past when no DAW could handle what they do now. (or rather promise to do, but never quite do).
The point about Zimmer of course is that he comes from a position of great confidence. He can say - "ok this particular sound is going to work for the whole film, beginning to end. Regardless (pretty much) of what my client says to me." Whereas, us mortals must have available the ability to swap in alternates, which may require a different mix/sound set. But with a wide enough "desk DAW" this would not be a problem.
The template (on the composing DAW) would basically be a massive bank of pre-setup MIDI tracks. And the mix side of the template would be on the "desk DAW" as I am calling it. This could be a powerful PC with RME etc etc, linked up via ethernet to further slaves. One could run MIR - but for now lets imagine Protools or a 2nd Nuendo seat (in my case). One could call up the odd plug on the compositoin DAW where MIDI clock fails to work etc etc.
Tha drawback of course is recalling the mix. Thinking aloud, one could rig up the "desk" Daw as it were, to sync to picture, and chase a mix. The great thing about this would be, regardless of preserved de-coupled whatever, you would HAVE to think in terms of a totally de-coupled setup, rather like a bank of old samplers in fact. The discipline of organised thought would be forced upon one, old school style.
The fact is, VE PRo is great, but once you have several instances, several MIDI ports per instance, it just gets sticky and slow to save. AND swap cues, and swap back again, and try to remember why you were loading the damn thing in ther first place before a "lost" instatiaion pops up and round and round we go...And your latency is dependent on the weakest link in the chain (usually a slave of course)
I am not an inexperienced user here (20 years) but you try loading a job that depends on VE Pro form 18 months ago. That is what I am grappling with now. Not pretty actually. You need to really take notes of have every slaves startup drive cloned for recal in the future. . I am actually really missing the old way - hard connected monitoring. It just worked.Why load it? Because I am doing series 2 of something. The client wants my old tracks tweaked.
Not wishing to moan or rant, but we all need to be very careful what basket we place so many eggs in.
B