Emacs. I've used to to code in Vim/Gvim, but I switched to Emacs just to try and learn about Lisp. Emacs has tons of interesting "plugins" to add, and actually I'm using emacs as my Organizer (using org-mode) too. Emacs hasn't anything to envy to any of those bloated IDE's like Eclipse or VS. I recommend to you: * http://www.emacswiki.org * http://steve-yegge.blogspot.com/ Steve Yegge has a lot of articles about Emacs/Elisp and it has been a excellent source of information to me.