To work or "stay home"

One day I woke up shocked that I had a a child a few months away from being a three year old. I spent the following months trying to decide whether I should quit my corporate job in effort to spend more time with my kids. I read book after book, helping to make the decision. I read such books as "Your Money or Your Life", by Joseph R. Dominguez, "Midlife Crisis at Thirty" by Lia Macko and Kerry Rubin (yes, anyone can get a book published if you know the right people). It was by far the hardest decision I've ever made (at least at the time). Now all of my friends are asking how I came to the decision, and is it the right one.