Monospace fonts
I finally got fed up enough with Courier New to start searching for a legible, monospace font to use in jEdit. In Emacs, I'm particularly fond of the standard X font "misc-fixed" (though it's a little tough to tell appart O and 0 still). But for jEdit, the Java monospace font seems to map to Courier New in Windows, and to some God-awful font on Linux.