I have been working with Brian Ghidinelli for over a year on putting together, testing, and implementing the CFPayment ColdFusion Payment Processing API. Brian and I have both been using it in production for several months with great success. You can see the details of his announcement, then go to RIA Forge to download and try it yourself!
Have you ever wanted a simple way to hook into one or more payment processing systems? I've teamed up with Brian Ghidinelli on the new CFPayment project to provide a unified interface to many different back-end payment processors. Read Brian's blog entry about it, then get on the forums and discuss your needs and/or contributions!