NM - seems like ou are taking things in stride - good for you.
Focus on GALing (doing things to be happy in your own right).
Using a mediator is much better than fighting with lawyers - and gives you the opportunity to co-parent better. Lawyers just make you hate each other. Usually, you will need an independent friendly lawyer to review the mediated agreement and parenting plan to be sure you are getting a fair deal.
If things are amicable enough - see if you can suggest a 1 year separation first instead of an outright divorce (if that is what you want)... WAW may realize after a year that a D is not what she really wanted. It helps having kids for WAW to realize that she has to give of 50% of the time with the kids.
Be sure to get joint legal and joint physical custody - that is what is best for the kids.
If you can get the 12 months separation, if gives you time to DB, and work on yourself.
Me:40 / W:33 / D:3 T:7.5/M:4 D Day: 1/24/08 Legal Separated: 6/12/08 BF who sleeps over: confirmed 11/10/08 Suspect BF pre-dates D Day