SD, I think you have thought out things quite clearly. From someone looking in, it is hard to understand. Given the circumstances I think you are following your "path of heart". This S will surely add strains, but could be positive. I sense you understand this. I am quite sure the toughest thing is going to be the seperation from the kids, I cannot even imagine. You are doing what you clearly think is best, you have done much soul searching, and only you can make the decisions. I don't feel you are giving up on your family, just passing a point of the old is not good enough and are laying long term groundwork for the new and hopefully better.