Slick Scheduling Java or Flash Drag-N-Drop GUI

The project is for the GUI only. A system using LAMP (Linux, Apache, MySQL and PHP) is being built to support this interface, but all I need from you is the GUI. It is for a scheduling program that is built for scheduling Film and TV production's shooting schedule. Basic PHP and MySQL experience will be needed, but You're main strength needs to be Java or Flash interfaces. Please see the attached document for specifications. Also, please take the time to make an argument for using Java or Flash and provide me with one or more links with a drag-n-drop interface that you have done. If you don't take the time to look over the specifications and provide me with relevant feedback, don't bother submitting a bid, thank you.