We have been calling the bump Monty ever since we found out it was a boy and now hubby seriously likes the idea of it as a name - obviously would be Montgomery on birth certificate. With surname Fox I think you need a few syllables and part of me thinks it could work: good nickname, traditional but not popular and could work from playroom to boardroom. But I don't know if I have the courage to go through with it! Fwiw other options are Sebastian (which I love but is same initial as hubby and also name of good friend's baby so I'm not sure) and Douglas. Middle name will be Patrick after FIL.
Any advice much appreciated!