is their a good way to make 4 spot lights move their point of interest around some what random. This of spot lights at a sporting event during introductions or at a concert. That is the look I am going for.
you could try a simple wiggle() expression on the lights' point of interest (or try the wiggler tool).
here's an expression to try:
frequency = 1; // how often it will create new random value in seconds
amount = 100; // the average value in pixels that the random number will deviate
complexity = 3; // how 'wiggly' the interpolation will be between random numbers