From 216 Technology:
TouchJams allows you to easily turn your Windows PC into a digital jukebox using your already existing music collection. Although TouchJams was designed specifically for use with a touch screen monitor, it's just as easy to use with a mouse.
TouchJams offers an intuitive interface which allows you to quickly navigate to the songs that you wish to play. TouchJams keeps your music playing with robust queue support and a customizable Auto DJ feature. Need a switch from your own music collection? TouchJams offers Internet radio support with built-in radio station presets.