This excellent article from the [url=http://www.feasta.org/]FEASTA[/url] website provides a list of stores and materials to survive a currency crash (I think it is Ireland-based and they are far closer to ‘the front’ than we are here in Australia). However I found reading the Comments following most enlightening. Particularly the focus on the key importance of community.
That’s why we’re doing Transition folks!
Here’s the article link and also the Fleeing Vesuvius one:
[url=http://www.feasta.org/2011/12/03/preparing-your-home-for-a-currency-crisis/]Preparing your home for a currency crisis[/url]
[url=http://www.feasta.org/category/documents/books/fleeing-vesuvius/]Fleeing Vesuvius[/url]

