Wow, what a great story. I like it when the person sees that there needs to be some kind of change and just does it instead of talking about it over and over and over again. Seems more sincere. So glad to hear that you and your husband are on the same page again.
To me, it seems, if you can afford it and if you have family around to watch the girls, you and your husband need a really special date night to really celebrate your new transition. Maybe treat him to a one night stay at a local hotel or bed & breakfast, and go out to a nice dinner or maybe check out some music at a local venue.
Other ideas are (depending upon your budget):
** Passes to a local basketball game for the two of you and your children so that it can be a special family night
** A compilation of special songs burned onto a CD that are all about you and your relationship
** A fun gift that you know he will enjoy -- for me and my husband that means that pair of special Xmas boxers that he ends up getting each year
** A beautifully decorated gift certificate for breakfast in bed and a complimentary massage and/or his choice of movie the night before
** Something sexy and wild -- I can make suggestions but you can probably figure this one out on your own.
Kudos to the two of you for turning your relationship around. Keep up the good work.