What tools do you use?
teuobk: By function, all (except Emacs) running on Windows:  *SSH: Putty
  *File transfer: WinSCP, TortoiseSVN
  *Coding: Aptana (Rails), Matlab (Matlab), Eclipse (C++)
  *Text/hex editing: PSPad
  *Server-side file touch-up: Emacs
  *Browser-based debug: Firebug
  *Image editing: Photoshop, Fireworks