Captivate is a free, open source visual synth and DMX lighting tool - CDM Create Digital Music
Colorlight LEDShow T9 LED Display Control System Software [CLS-Colorlight-LEDShowT9] - It's Free! : China LED Display Quality Agent, LED Screen, LED Curtain and LED Lighting Shop
DMX Lighting Control Software for Night Clubs Discos and Bars
3D Lighting Visualization Software - SIRS Electronics, Inc.
Lightkey – Professional DMX lighting control. Mac style.
Laser Light Show Software – Pangolin and KVANT Lasers
Studio DMX - Lighting control software
BEYOND - Professional Laser and Multimedia Show Control Software - YouTube