Meadow is a tool that I came across on my last visit to Japan.
It is a GNU Emacs imlpementation for Windows and is fairly popular in Japan.
Though i had tried the windows version of xemacs before, I like the meadow interface much more.
I sometime do a little bit of rails hacking on my windows pc too … so i installed the ruby mode.
If you would want to add ruby-mode, you can find ruby-mode.elc under your ruby installation.
Copy it to lisp/progmodes/ under meadows home.
To customize Meadow further… here is a good link ( tis in japanese, but you should understand the lisp)