My personal preference is for a chest freezer, only because I get nervous about having all that weight sitting on a refridgerator shelf. Of course with a freezer you would need a separate temp controller, and with a fridge that isn't necessary. I guess it boils down to whatever you can score in your local garage sales, if you're like me and too cheap to buy new. My freezer holds two 5- gallon carboys, but it is too short to hold 6 1/2 gallon carboys. But it was free so I can't complain.
I like to squeeze the nickle until the buffalo craps-mt rob
"Why don't we get drunk and screw?" Jimmy Buffett