I just got into homebrewing and am already thinking about moving to kegging but had some questions first. I am thinking about a 2 keg setup but want to know what is the smallest size fridge that i could get that would fit two kegs (being in the military i move around a lot and don't always have a whole lot of space). My other question has to do with how long beer can be kept in kegs. I've never dealt with kegs but from what i gather, doesn't the beer go bad after you have had the keg tapped for so long? Also, i saw a nice setup on Midwest's website to where they have the complete 2 keg setup but they have a Brew Logic system and a Cornelius keg system. The Brew logic system is cheaper and i'm wondering what is so much better about the Cornelius system to make it more expensive?