Just underwent the same decision. After 10 years at my old job my wife and I decided that our"comfort zone" was the worst place to be. We turned everything on its head, new job, moved to a new state (WY) and new opportunities. My wife stays at home with our little girl and I took a significant pay cut. We decided to do it for family. The change has provided a lot more opportunity but hasn't come easy. We are bouncing back but it's going to take a little while to become established again. Money can't buy happiness. The one thing that made it possible for us was to really get ahold of our finances. We use the Dave Ramsey plan. He calls it "financial peace" and it is a very good feeling when you know where your money is going. We are making less now than we ever have and saving more.
Good luck with the new job, nothing replaces family.
Good luck with the new job, nothing replaces family.