Reading Amazon RSS with Ruby

I'm having a ball with my Ruby project. I had the usual start-up issues, but once I found a webhost that knew what it was doing, and ironed out a few bugs in the database library for MySQL, things have gone great. I now have a simple script that will read the current Amazon RSS feed for computer books, and publish it as a list of linked titles on a web page. Now I'm ready to sign up for an Amazon API account and get started with web services programming.