Opinions wanted on a good exhaust setup

[chwkreefer]

Most likely I will building a new house early next year. I have a 75 gallon reef tank and I would like to exhaust the humidity directly outside.

I will either put the tank in a china cabinet area so that the tank is against the exterior wall. I would probably build a facade to give the tank a built in look. Or I will build it into the wall separating some rooms and then view it from both sides.

Either way I want to use some type of exhaust fan setup. I want a quiet setup and a unit that is quite corrosion resistant. So if you have some suggestions that would be great. I think I will still have two 4" fans blowing into the hood and then have a duct running out of the hood to an exhaust fan and then directly outside. What do you think? If you have a specific exhaust fan to recommend that would be greatly appreciated.