Jamsterdam offers a really great tutorial for the RSS “first timer”. With this tutorial you can roll your own feed just like the pro’s do. You will find everything completely “broken down” into the basics so that it can be absorbed quickly. Even the simplest parts of the code are explained. This is most definitely one of the easier tutorials that I have seen. Nice job Jamsterdam.
If this is still a bit much or you really don’t give a rip how it works, try this RSS creation tool from webreference.com instead.