<html>
I cant believe no one said JEDIT. I absolutely LOVE jedit. EVERYTHING is remapable, color parsing, FOLDING, LINE guides, tons of plugins-macros-blah-blah balh.. Its free so I guess I really shouldnt SELL it so much... www.jedit.org check it out yourself...
jedit would be the perfect editor if they switched to using SXW (the new GUI stuff from IBM that's platform specific - i.e Windows on Win32, and Gtk on Unix). Until then I just find it way too slow :-(