There is also a new Winsound-style GUI frontend now in the Csound 5
CVS. It is not entirely finished yet (some changes may also be made
based on user feedback), but is already in a quite usable state; the
only parts missing from the originally planned features is some of
the utilities and the "about" window. Like Winsound, it also uses
(configurable) external text and sound editors, but there are a few
additional features like saving and loading "presets" of settings,
transport controls, performing either in a separate thread (better
real time audio) or synchronously with the GUI (required by the
widget opcodes), etc.