My wife bought me this book for Father's Day. It's got a lot of good information and will help you think through how much food you'll need and ways to store it.
Also includes info on other preparedness topics, but the most extensive coverage is on food requirements and storage solutions.

http://www.amazon.com/Crisis-Preparednes...3861&sr=8-1

HTH
-phil
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Muller's Theorems No. 5:Corollary 1 - Any totally successful project was not sufficiently daring.