I've had flexibility in my work schedule for both kids, so I got up with my wife every two and a half to three hours through the night, got the baby, changed her, and brought her to my wife to feed. It's certainly not as much work as doing all the feeding, but I think that she appreciated that I was up with her at each feeding and that she could stay in bed. I'll admit that I didn't stay awake for the duration of each feeding though.

The first week or two the baby will sleep ALOT. After that, it's a big help to set aside some time to watch the baby so that your wife can shower, do her hair, put on decent clothes and just feel human again.