It's an essential purchase, women have babies to play with, men have cameras.
Can't say my household fit's that mold- we've got 4 youngins, my wife has a much more 'successful' career than I have. (As a result of her superior education) I've done the stay at home dad thing for a few years, and probably am going to again within the next 6 months.
But I still claim to be the more intelligent one, by default of my superior male chromosomes.
(I'm only kidding, but I will be going into hiding now in case noone finds this humorous)
I'll never forget when I was told women will never make good photographers - because we are too emotional.
Eat those words Gary!
Congratulations Paul! Make nice photographs of your wife and family, and let her take the camera out, too. That might make the introduction a little less painful.
All seriousness aside. When my first child was born, I set up my X-700 with the strobe to the correct f/stop and 1/60th second. Then I showed the ex how to focus and shoot. The camera was always out and I made sure that it was always loaded and the batteries were good. A lot of Kodak [and Fuji] moments were captured.