Like 95% of the others, I say ferm chamber.
I have a 7 cu ft freezer that I was going to use for a kegerator and chamber but there just isn't enough room for both. Now I need to decide if I want to buy a fridge to use as a kegerator and use the freezer as a ferm chamber OR build a ferm chamber using a dorm fridge.
Primary: S'mores Stout
Kegged: Centennial Blonde, Dry Stout and Orange American Wheat