http://www.amazon.com/Mac-Classic-Se-Upgrade-Secrets/dp/1566090229/ref=sr_1_1?ie=UTF8&s=books&qid=1298654265&sr=8-1

Larry Pina's repair books are usually pretty good. They're old. So parts mentioned in the book may be hard to find and suppliers may be long out of business.

You could probably find all the same information on the web somewhere with a lot of hunting, but many folks (including me) find it easier to just have a book.