According to an old Mixmag article, the distinctive "typewriter" sound on the main break is actually a really distorted recording of Marshall Jefferson saying "gotta have, gotta have house"! You can just about make out the words if you listen carefully and use your imagination. :)

The "raise your hands" sample comes from the Little Louie Vega-produced We Can Make It by Sole Fusion, the 100th release on Strictly Rhythm.