There is an interesting article over at the L.A. Times about some activities by one of the more secular-minded founding fathers, specifically Thomas Jefferson.
I knew that most of the Founding Fathers were deists, but I didn't know that Thomas Jefferson took scissors to a bible and using paste and a journal made a 46-page rendition of the bible as he believed it. (Thanks to Pharyngula for the link.)
If you want to read what he felt was important from the bible, check it out. The Jefferson Bible is available online. (Make sure you have a decent pop-up blocker.)