Google Map with Heat by apudata

Google map that shows "heat". Using something like this: http://www.eggheadcafe.com/tutorials/aspnet/d21d8b31-bcb7-4777-9637-49b71fed6d38/generating-a-heat-map-wit.aspx But I would like to be able to have finer distinctions than just by country... (Budget: $30-$250 USD, Jobs: AJAX, Javascript, MySQL, PHP)
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