MLCS recently introduced the Powerlift, a motorized router lift for your router table. It allows you to make hands free plunge cuts, raise a spinning router bit into the work piece with a bi-directional foot pedal, and save time and increase efficiency with precision cuts and digital height readout. While never taking your hands off your work you can continue to make incremental passes or plunge cuts with a tap of the foot pedal. Precisely control the vertical-travel speed of the lift so it moves as slow or fast as you want.
More information is available here.