Congats Jim
There isn't anything cooler in the world than when they learn to say Grandpa
My Daughter had number two last month, my wife is beside herself over this one because unlike my daughters first:
1, The baby was planned
2, She's married
3, Husband is out of school and has a killer Job
4, She has a boy and girl now and they are done makeing babies
Her kids have had 10 babies so far, 0 planned, 2 married, 0 out of school with a good job, all girls or all boys and we both know there will be more