Caliber Talk: Ammunition, Reloading, and Shooting
Sprortsman's Guide has a pretty good deal on USED M2A1 ammo cans. Basically buy one get one when ordered in the three packs. They don't say how long the deal will last.
I usually buy new ones from AIM when they have free shipping, but I have bought a few from Sportsman's.
I am going to wait...