All perfect praise be to Allah, The Lord of the Worlds. I testify that none is worthy of worship except Allah and that Muhammad is His slave and messenger.
There is no harm in marrying a woman from the People of the Book.
For more benefit on the conditions to marry a woman from the People of the Book, please refer to Fataawa 82067 and 83101.
As for your children they must follow your religion. You should take special care of them and educate them according to the right creed as to prevent them from being influenced by their mother's religion.
For more benefit on disadvantages for marrying women from the people of the Book, please refer to Fataawa 89277, 397159, and 84159.
Allah knows best.