I would recommend going to www.charlottejcc.org - they do a great job of using Spectrum On-Line for online registration, and letting their members browse the program catalog through their own website with links to enroll into the program through SOL.  Another JCC that has done a great job of using Spectrum On-Line is the JCC Metrowest in West Orange, NJ.  We have a case study on our website about how they increased their online enrollments.  These are just the two that I can think of off the top of my head, I'm sure that there are many more...