Homer,
When I did the separation agreement, I was the only one with counsel and he did all the work on the agreement, I told him what I wanted, the other wanted and then he put in what we needed. It cost just over $500.00. If you are thinking about doing one up yourself, make sure that you have independent counsel look at it before signing because there is alot of things that we never would have thought of that needed to be there to protect both of us. Good Luck.