My one biggest piece of advice. SLEEP WHEN THE BABY SLEEPS. or you will get NO sleep ever.
It will be the roughest thing you have ever gone through but one smile from your childs face up at yours makes it all better and reinvigorates you for another shot of energy for whatever you need to do.
Trust me though you will need to take at least 4 weeks off work for paternity leave assuming you are the father. Then once you go back to work expect to only work on the computer when you are at work. When you get home expect your wife to want some help with the kid and dinner etc. and don't expect to get any computer time at night for the first 3-4 months.
You will only get computer work done at work when you are away from the house and at the office. When you are at home your wife will have a constant stream of little things she will want you to do and you will feel like a slave, but then you will imagine what she goes through being alone with the baby all the time. and you will have mad respect for her.
Mostly try to be supportive and learn to not mumble under your breath when she asks you to do a million little things, Just do them and move along. It will pass soon once the baby hits 6 months or so and starts to have a real personality that you can interact with.
The first 4 months out of the womb is considered the 4th trimester and the kid is really still a foetus. Literally they cannot do anything for themselves until about 4 months. So its all up to you ad your spouse to do everything for them. They will be all floppy for a while not even able to hold their head up without support.
Trust me though it will all be worth it every time your little one smiles in your face and you will be re-invigorated.
Its the most incredible thing that has every happened to me and it made me re-evaluate my life and make major changes(like major changes). I resigned from my startup that I founded after 4 years(engine yard: really long story i'll write a book about someday ;)) to make sure i could spend this time with my son as much as possible. I cannot say what I am doing next but I am moving to Portland where my folks live in order for my son Ryland to be closer to his grandparents. And got a job that was understanding about working remote and weird hours. My new boss is the coolest ever he literally said "As long as you shit good code I don't care where your toilet is" :P
Don't worry, it will come naturally to you like it has to all humans thhroughout time. But remember this
SLEEP WHEN THE BABY SLEEPS DURING THE FIRST 4 MONTHS
good luck! and congratulations!