Keyword Pricing Application

I am trying to assess the cost per click costs for different keywords in Google. There is a wizard for Adwords which you can manually determine the volume for any cost per click bid on any given key word. I would an automated way of generating a spreadsheet of keywords and some index of their cost per click ## Deliverables 1) A spreadsheet with keywords and an index of cost per click 2) An application that I can run to update this spreadsheet ## Platform The spreadsheet must be in Excel. The application must run on XP