Sounds a lot like the conversation XAH and I had when we finally decided to split. So you came to an important decision, and both are accepting the decision, which is good.
You don't need to hammer out assets and support with him now. Your lawyer (get one now) will ask you about your assets and then advise you what the courts like to see as far as asset splits and support in your specific type of situation. My ex thought it would be up to him what he would pay...it wasn't, although after some negotiation (from a position of strength after I learned what I should be getting), I agreed to a paltry sum because I wanted his equity in the house. Which turned out to be a damned good thing because he is unemployed and spent the summer living in his car. If I had depended on income from spousal support I would have been in deep trouble.