Revised Wireframes. This includes changes to both the front end and the back end of Drupal required.
Programming languages:
PHP, HTML, XML, Java Script, JQuery, Ajax CSS, ActionScript
Content Management System:
Drupal theming and programming (Customize tpl pages, creating new themes from scratch, using modules, blocks, views, forms, etc.)
Wordpress
Computer programs:
Photoshop Extended, Illustrator, InDesign, Acrobat 9 Pro, Flash Professional, Dreamweaver, Coda.