JJJ,
Suitably qualified Females are eligable on an equal footing with Males. There aren't currently any Husband and Wife pilots, but I don't think it would be a problem (Plenty of couples where both work for EK in other positions.)
So, if you both have the hours and both pass selection, should be fine.
Housing wise, I think you would both qualify to get the utillities allowence if you opted out of company accomodation. It isn't enough to rent or buy somewhere of equivelent standard on its own, but if you both recieved it, it might be worth considering.
Best of luck.