Excellent idea. Not many people sit down, and script out their magic anymore, which is a shame, because that really adds to a perfect performance.
Here are a few books you should take into consideration:
Scripting Magic by Peter McCabe, is an EXCELLENT EXCELLENT book that scripts effects FOR you. Research this book for more info, or contact me.
Strong Magic by Darwin Ortiz. Again, another great book, which is all theory of magic, and teaches you how to become a great performer.
Maximum Entertainment by Ken Weber lives up to it's name, and talks about the things the other books talk about. Pretty much how to make your magic more entertaining.
These are three excellent books, that you should really look into.
Best of luck,
-Sanj