411 REFERENCE · Wikibooks
A Beginner's Guide to D/Before We Begin.../Editors Supporting D
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
There is currently no finalized IDE tool ala Eclipse for D development. Vim and Emacs come bundled with D editing modes, and since D is syntactically very similar to the other C-style languages, any editor which supports those might rudimentally support D.
However, for an exhaustive list of D-supporting IDEs, please refer here.