You will have to create a simple web grabber based for gametrailers.com.
1. User feeds with: http://www.gametrailers.com/games/0eyj6l/halo-4
2. Crawler goes through all categories, get all trailer information and fill up all information including trailer link to database.
Script has to be convertible on for several CMS.And Show your working script on a simple site.
Budget is strictly limited to 40 USD.