Good luck to you and Sarah, Ender.
One of my friends had a kid a few months back. I don't think he has slept since then, though he still shows up for gaming so all is good.
Only advice I can give is to prepare for the worse, set up a savings account for rainy days for you will have many, and follow the Murphy's Laws of Combat faithfully.
http://www.megazone.org/Random/murphy.shtml