This was my render scene for the Blender Cookie Contest: Create a Robot in Blender! http://cgcookie.com/blender/images/24h-burnoutbot.
The 3d-File can be downloaded on Blendswap:
The Blend File includes the full rigged Robot and a few curve controllable cables.
I rendered this picture with Cycles and i used the Blender Internal Render for getting those halo light effects, also i use a little bit Photoshop for the postprocessing.
Made with the free open source 3d program called Blender: