Converting Side-by side fridge/freezer

So after 20 years of homebrewing I finally got a keg system. The problem I have now is I only have one fridge for both the keg and my fermenting beer. So right now I have an I.P.A. in secondary at 68F. Which means the keg is somewhere in the mid 60's. I cannot get any carbonation even with 22 PSI

The wife does not want me to run 2 fridges, so what am I to do? My idea is to get a side by side fridge/freezer and put the kegs in the freezer side and the brewing beer in the fridge section. I have 2 options:

1. Plug the fridge into a Johnson controller monitoring the fermenting beer in the fridge side and accept whatever temp the freezer side turns out to be for the keg.

2. Use my own PID temp controllers and bypass the fridges control system completely (I am not afraid to start cutting wires and pulling things apart).

I am more partial to option one as i am not an electrical engineer but I do know one and I can figure it out.

Does anyone have any experience with this sort of thing? I am open to all advice.

(I am not rubbing it in, but I do live in Hawaii so I will never have to warm the fermenting beer, only chill it.)

Here's a link that should help.

Thanks but I don't see that link

Dang! Did it again!

http://www.homebrewersassociation.org/pimp-my-system/pimp-my-system-richard-trevino

Thanks, that is very helpful.

They changed the link by the way: http://www.homebrewersassociation.org/pimp-my-system/richard-trevino/