Power Arduino DUE board from 3 AA batteries: suggestions ?

Official Hardware Mega Due
6

CaptainJack:
Hello all,

I just ordered my first DUE board to play around with. I'm wondering what the best way would be to power the board from 2 or 3 AA batteries.

NiZn rechargables are 1.6--1.7V per cell, so 3 will do 5V.