jQuery Cycle provides a lightweight slideshow plugin. It is super simple to drop in and create a great looking slideshow. The real trick to is to ColdFusion to grab the images from a directory then randomly sort the results to create a unique slideshow for each visitor.
Production sites may need to add caching for the directory calls.
Demonstration
UPDATE: Michael Evangelista has a very good advanced post on this subject - Visit his post here
Demonstration
Complete Code
UPDATE: Michael Evangelista has a very good advanced post on this subject - Visit his post here