state or province and country dropdown list

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I am trying to locate an addon solution for the ecommerce addon that will; permit me to include a drop-down geographical list of states and provinces and maybe even for countries

To be able to use in the produsts setup instead of having to use the checkbox or radio button feature.

any ideas for an out of box solution. I gont want to have to spend a bunch of money for custom programming.

thx

blackadder