I've seen a few threads on here with people looking for deals on baby formula. (Baby's Only calls it a "toddler" formula to be politically correct and promote breastfeeding, but it can be given to infants.)

Here is the Baby's Only Organic site for more info:
http://naturesone.com/index.php

For price comparison, this is about $12 a can at the health food store. It only comes in milk-based or soy-based and in cans of powder.

You get free shipping with the code v100 and a $100 purchase (which is 13 cans). My package arrived a week after I ordered it.

http://www.drkowalski.com/baonorfobyna.html

This site has the milk-based formula a bit cheaper (especially when you buy multiples). You get a shipping discount with purchases over $100.
Milk based:
http://www.luckyvitamin.com/716514229003.html