Congratulations! There is nothing in this world that can prepare you for the joy that will be in your heart will that little person comes into your life and that joy will continue to grow as the little one starts progressing in life ... sitting up, crawling, standing, walking, calling your "dada" or "papa" (or whatever) but also remember this ... the more they move, they more you are going to worry. In the beginning you are going to worry about them turning over and suffocating. Then when they start walking, your going to worry about them falling or disappearing when you turn your back on them. Then when they start driving -- well, you get the picture ... the more they move, the more you'll worry.
On a practical note, stock up on a LOT of sleep now. The first week or two, you will not sleep at all except for an hour nap here or there. A few other things to consider is getting one of those mini fridges and putting them in your bedroom. Even if your wife plans to breast feed, there may be times when the baby will prefer the bottle (even if it is your wife's own milk that she pumped earlier) -- for either reason ... either formula or breat milk, chances are you will need to store the milk/formula in a fridge. Have one in your bedroom otherwise you might find yourself flying down a flight of stairs as you make your way to the kitchen in the middle of the night after not getting any sleep for several days.
Your life will forever be changed -- for the better. Enjoy your free time & sleep now and enjoy your new baby later. Warm regards, FUD.