+1 on the sankey (yes, you spelled it correctly). most commercial kegerators come with a sankey tap.
You can either cut the lines and install your ball lock or pin lock connectors (depending on the type of corney keg you get), or you can install fittings allowing you to do both. The easiest way to get all the fittings you need is probably a conversion kit like this one: kegerator homebrew conversion kit. @ Williams Brewing