Your work week as a doctor and resident isn't going to be easy no matter what; they 100 hour weeks are being cut down by law but several disciplines will alway be long and hard. The difference between 80-hr and 100 isn't that much if you are missing your wife and family; better you look into this now - and pick a path that suits you- than when its too late (or difficult anyway) to change gears. But there is no way around a long internship year, and several student rotations that are consuming in year 3 mostly. If you focus on these as short term you'll be a lot happier.
If you get a warning, put on yer manpants and stop whining about it.