Need Drop Down Menu to work with our web page

Web based business need to have multipale drop down menus that go to our existing product pages. Please visit [login to view URL] we would like to immulate there site. We have already made the product pages and design in the web based aplication Volusion. We need someone to put together the drop down menus that calculate the boat make, model size and and go to the correct page, We have all of the drop down information in excell. please let me know if you need any further information.