Being a father is:
The best, hardest, rewarding, satisfying, grieving, surprising, elating, coolest, job ever!
they grow up so fast! enjoy every moment--take lots of pics and video if you can.
(my "baby" just turned 4 a week-and-a-half ago and my oldest will be 7 in march. i look at my pics and vids and think to myself, "Damn! Where did the time go?")
Again, congrats to you and your family!