Yeah, what I would like to do is to duplicate your setup, but trade the freezer farm for one contained unit.
I'm thinking now that I should really have 3 chambers. The large cold area would be for storage and lagering and powered by one air conditioner. Then on top of that I would have two chambers side by side, one with a temperature controller running a second AC, the other with a temp controller running a fan/baffle system as described here
. That chamber could also have a heater/two stage TC for winter ale fermentation.
I'm kind of going back and forth on this. On the one hand, I keep thinking I just should get a freezer for serving/lagering. But then I'm going to want fermentation control, so I get another freezer? That still leaves me with only a single fermentation chamber, and two giant freezers.