What are some options for getting really fast \'Find in Files\' searching in VIM?
Our codebase is large enough that searching needs to work off an index. grep/vimgrep/et
If it's source code (rather than full text search), then ctags with the TagList plugin should work well for your needs. See, for example:
http://www.thegeekstuff.com/2009/04/ctags-taglist-vi-vim-editor-as-sourece-code-browser/
EDIT: TagList and ctags will work on Windows as well (that's what I use). See the TagList install page and FAQ. The following links might prove useful:
There's also a TagList forum where you can get further help:
http://tech.groups.yahoo.com/group/taglist/
I set it up on my windows machine a while back, but I don't remember encountering any problems.