I've been researching these for a while too, and I also need an 1100-1200 cfm hood. I'm liking the Modern Aire a lot. Their liner has a rheostat control, which I believe is important.

Modern Aire (and others) recommend you calculate the total BTU output from all your burners and divide that by 100 to get the total CFM requirement for your hood. So, if your range had four burners and each had a 15,000 BTU output, that's a total of 60,000 BTU's - requiring a 600 cfm hood.

The Capital Culinarian 36" range has six burners at 23,000 BTUs each, for a total of 138,000 BTUs. That would require 1380 cfm. I can see where someone might downgrade that a bit, though, since it's unlikely you will have all six burners going at full capacity at the same time. I love the CC, by the way; wish I could have one.

A properly sized blower can be very noisy. I've seen recommendations here to use inline duct silencers, and I think I'll be doing that on mine. Modern Aire uses Abbaka exterior-mounted blowers and Fantech inline blowers and both seem to have good reputations.

The reason the rheostat is so important is to enable you to vary your blower speed when you're only using, say, one or two burners. This is another way to moderate the noise level while still exhausting properly.

The link below is to the Modern Aire site's page that goes into a bit more detail about the size of the actual hood and height from the cook top.

Here is a link that might be useful: Modern Aire - How to Choose Ventilation

Take a look at Zephyr - they are sleek - not huge monsters that become the unwanted focal point of rooms and from which you have to remove heavy pieces to get them clean. Zephyrs are good looking and unassuming, plus efficient. Mind you they are noisy enough but aren't they all?

@Deirdre7: no, they aren't all noisy!!

The advantage of a well engineered hood, using a remote blower and a silencer is that you get superior performance and remarkably quiet operation. I have had the pleasure of realizing what a huge difference there is after I installed our Modern Aire hood liner with a Fantech FKD 10XL fan mounted in our attic, along with a Fantech LD10 silencer. It's almost imperceptible at low flows, and at the full 1000+ cfm setting, all you hear is air flowing through the baffles.

I can say this with some authority as I have actually done decibel measurements on my two hoods: see my old post

vent hoods and noise, the real scoop

I think the measurements speak for themselves.