My neighbor has the coil cooler and I was surprised at how well it worked and was thinking about getting one.
I know what you mean about the selection for the mini. I love the idea but the selection is horrible...especially since I'm a micro-brew drinker.
Option for keeping the beer cold:http://www.micromatic.com/draft-keg-beer/jockey-boxes-pid-CB281R.html
Or this item:http://www.kegerator.com/EdgeStar-Deluxe-Mini-Kegerator-TBC50S-Beer-Cooler/TBC50SKIT,default,pd.html?cgid=Kegerators-Mini_Kegerators