If you live in the state of California and need a post-nup for any reason, both you and your spouse will need to retain counsel. During my quest to find legal representation for a post-nup, prior to purchasing a house, I came accross a number of lawyers who wanted to upsell for services. I was lucky enough to find a great lawyer who recommended I save a few bucks and start the process myself, using Nolo. You can use this book for post-nups, with just a few changes in the wording.
You can then have the 2 lawyers review your agreement and viola! you're done.
This book was incredibly helpful and the templates were easy to find online. The book does not come with CDs. The book is full of examples and I was able to find the example that perfectly suited my situation.
I should mention, however, that these nolo books are great! The only exception would be their book on estate planning. I'm just passing on what my lawyer told me.