I dont think there really is a beginner book. There is so much that you can do, so much you will and so much you wont do with SMS. You only need to know about the things you need to do at this moment in time...then build up your "knowledge toolkit" as you expand site and functions.
There isn't really anything that you can read from start to finish and say..right, I know what I'm doing. It's a matter of trial and error, and practicing most of the time, or reading advice on a particular issue.
Best bet, get the Microsoft Systems Managemener Server 2003 guide from MSPress. And get your self a few machines in a test environment. Make sure you know what you're doing with a configuration before pushing it to your operational systems.
My "guide" is nothing but a step by step for getting it up and running, and very basics about what each step is doing. All that really exists are "guides", kind of walk throughs, rather than accademic study texts about processing, it is all broken down and applied in the texts that are available. So rather than a "beginner" book. Get the Administratocs guide, and just get good at searching for your information.
It's a better skill to be able to quicky find answers with material, books, papers, internet, forums, than it is to know all these correct clicks. If you are skilled at configuring a system, but have no idea about the best methods for searhcing for solutions to problems, it will take you alot longer to complete than someone who can sucessfully diagnose and research problems.
Just my 2pence worth.
Hope this Helps.
Neil J Cotton
njc Information Systems
Systems Consultant