thanks buddhi, glad you like it!
it wasn't that complicated as it might look. the only trick is, to set up the lights in a seperate fract file. the advantage is, that you don't need to take care of camera positions or angles. after positioning the lights, i just copy/paste them with a text editor to the main scene - thats it.
the glowing blue lines are a product of playing around with layer modi in post production.