Find me some Leads

Google Adwords Lead Generation #1. To find all those individuals or companies from USA only who spend >= $500 / month on their Google Adwords programs. #2. All those companies have their own domains/websites and they are willing to try out Adwords Support Tool. The ideal leads are: 1. That their Adwords budget is over $3k   2. They are in the Vegas area.  3. They are in the USA. This will be an ongoing project. The number of leads required per month is 1000.