Google AdWords API / Google Keyword Tool

We need a script that can access the Keyword Tool from Google found at [login to view URL] select the global search volume option and then select/tailor to all countries and all languages. The script will have to run several thousand keywords into this tool and then send back out the CSV file with the average traffic volume for the terms. We have the 40,000 keywords that need to be run, now we just need an automated/easy way to run them all in and then retrieve the file back out. Attached is a sample file that Google gives back. If you have questions please let us know.