I do that by default now, too -- OS X has a few basic Emacs control keys that work in all text fields/boxes, like ^P/^N, ^A/^E, ^D, etc., and even though I rarely use Emacs itself those have become muscle memory.
(I use KeyRemap4MacBook for a couple things, including mapping Caps Lock to pressing both shift keys simultaneously, so I still have it if I need it.)
(I use KeyRemap4MacBook for a couple things, including mapping Caps Lock to pressing both shift keys simultaneously, so I still have it if I need it.)