
Stopped by Jeremy's with some homebrewed barleywine in tow. We modified the fridge, connected the hoses and voila! :-)
Perlick faucets with Anchor Steam and Sly Fox tap handles. Yards Brawler and Jackie's Belgian Style Imperial Wheat on tap. Mmmm...
Buy local or brew your own. Anybody can brew beer. Everybody should brew beer. Do it your way.

Check your local homebrew store for supplies. You can also find equipment on Amazon...
Amazon: Kegerator Equipment
So far I like the idea of the collar. By modifying the collar instead of the chest freezer you can maintain the integrity of the entire chest freezer and use it as such or sell it later. You also get some additional clearance from the collar.
On the other hand the towers tend to look more like a typical kegerator/tap system. Especially when using the smaller chests.