I have tried a couple methods and prefer the freezer. I got a 23CF off of craigs list for $30 and temp controller was $60(it was a couple years ago). It will hold 7 ale pails and a cornie. By mounting a small pc fan to the inside of the lid it keeps temps from swinging due to air stratification. By far the best $90 I've spent on brewing. It didn't require any more skill than turning a screwdriver and is 100% maintenance free, until you get a blow off. Yah you have to lift the bucket into and out of it, but if you can't its time to brew smaller batches or find a new hobby.