Desktop GUI builder tools such as Qt Designer and Glade let me easily design a resizable interface with menus, shortcuts, tab order, status bar, etc
Is there an equivalent tool for the web?
I am not after building a typical web interface where you scroll down to view all the content, but a fullscreen interface with menus at the top and status bar at bottom.
Here is an (awesome) example fullscreen web app: http://desktop.sonspring.com/
The Flash Platform would probably give you a more familiar environment to develop for. The Flex framework provides a complete framework for developing sophisticated applications and Flex Builder (built on top of Eclipse) gives a UI 'designer' to build large parts of your app using the drag & drop philosophy.