Panic Coda is a shareware web development application for the Mac OS X operating technique. It seeks to reduce the amount of applications (such as an FTP client, CSS editor, a version control technique, etc.)you need to create sites & to improve your team’s workflow. Coda’s one-window web development philosophy makes use of a tabbed interface for text editing, file transfers, SVN, CSS, & even "Books" which embeds web books that are searchable (it comes with The Web Programmer’s Table Reference but you can add your own).
It’s simple & intuitive interface allowed Coda to garner the Apple Design Awards Best Mac OS X User Experience in 2007.