[Zelphyr]

I have never had success with these plugins. I apparently begin typing too fast after hitting Escape and invariably the plugin can't handle that and it enters things like ":w" as text instead of processing it as a command. Obviously this isn't a problem in Vi/Vim proper but all of the Vi*-style plugins for any of the IDE's or editors I've tried--from Eclipse to Sublime--always break.

[girvo]

The best one I've used that has worked near-perfectly for me is Vi-emulation mode in Komodo IDE. It's really impressively done, to be honest.