It is still one of the best things I've ever done. I am pretty sure I've written about it before but it's been a while!
I don't think anyone are expert parents off the bat. You learn on the job and try to use common sense and read a bit if you can. I think your intelligence and thoughtfulness would go a long way, as would your clearly strong relationship with your wife!
Watching my son parent now shows me did an okay job - he's a fantastic hands on Dad and draws clear boundaries as well as gives him freedom to discover and get his hands and feet dirty. I think we learn a lot from our own parents - the good stuff and the stuff we need to correct!