To save money, you can use the free service (App Maker Lite) available at Dapper.net. This website enables users to turn any website into a Facebook application with no programming experience required! They also provide a video tutorial for those who would like to learn how to use the Dapper website to turn websites into interactive Facebook applications quickly and easily.
Visit: http://www.dapper.net/facebook-appmaker for details and to get started.
Video Tutorial: http://www.dapper.net/dapperDemo/