Just adding another one to the list - SlickEdit.
No need to introduce SlickEdit - professional and proprietary IDE that supports a whole list of programming languages out of the box (via kinda plugins, that are distributed with it) ... including D.

Almost forgot ...
Works in every reasonable OS.

On Tue, 14 Aug 2012 16:34:30 +0200, angel <andrey.gelman@gmail.com> wrote:

> Almost forgot ...
> Works in every reasonable OS.

Perhaps add a URL, too?

-- 
Simen

www.google.com  :)
but www.slickedit.com will also be Ok.

$300 is pretty steep for such a simple editor

Sublime Text is only $60 and project settings are all set with a config file in JSON which would make it very customizable