I am looking for something like Textmate's fuzzy search on Command-T, FuzzyFinder in Vim, or Ido in Emacs. Does it exist? If no, how do you prefer to do it?
CTRL + SHIFT + r will search each for any "Resource" (file), anywhere in your project
CTRL + SHIFT + e will search for a specific open file (ie. your buffers)
CTRL + SHIFT + PageUp/PageDown will navigate to the next/previous open buffer
CTRL + SHIFT + Left/Right will navigate backward/forward in your browsing history
(eg. if you went from tab 1 to tab 5 to tab 2 and then hit CTRL+SHIFT+Left, you'd go back to tab 5; you could then hit CTRL+SHIFT+Left to go back to tab 1, or ...+Right to go back to tab 2)
Hope that helps.