But I can tell you from reading the other sitches here is that you will struggle just as bad with PS if you ignore good DB principles!
Completely disagree. First of all time and space are the only things that help with detachment. Physical separation is the only way to get your spouse to wondering what you are up to which is what you want if you want to turn this around immediately. Nothing sounds worse then a LBS watching there WW get al gussied up to go out and sleep with OM. Check out Nick Wingers thread.
The only advantage to IHS is more time with the kids but it is easier to start the process now and ease it into the divorce.