Thank you all for your responses, the information is appreciated. With each response I have enough new information to research for an hour.
If you have any more suggestions or points you would like to make on; 1) FF vs. Crop, or 2) Lens options for taking baby pictures -not babies taking pictures", then please send them my way.

I am going to a local photo shop (Milford Photo, Milford CT) on Monday to discuss if a FF is a better choice / investment than a crop camera for me now, or am I getting in over my head as some of you have suggested. And what lens best suites my needs - new father taking baby pictures.

Thank you again,
Bruce