So, how do we get ready for RDA? Well, some of the expert trainers recommend to start out by learning about FRBR. Here's a link to a video on the topic. It's a few years old but hopefully it will help to get you thinking about what FRBR is and why it is useful in libraries.
If you can't watch the video, try this Slide show (there are notes at the botton of the screen if you view the slide show in "normal" mode). http://www.loc.gov/catworkshop/RDA%20training%20materials/FRBR%20Overview%20and%20Application_Module%201_CLW.ppt
This is also a newer presentation.