Krups B90 BeerTender Home Beer-Tap System for $64.99 after code SEARS5OFF50.  Shipping is $10.65 for a total of $75.64 shipped.  Here is a screenshot for your reference.  It is designed to work with the Heineken or Heineken Premium Light DraughtKeg, maintains the beer at the proper temperature, and uses an internal carbonator to ensure fresh beer for up to 30 days.  Most places have it for about $99.