Vim provides a lot of functionality out of the box, however some plugins are extremely powerful and can make everything even better. Here are some:
- Ctrlp: fuzzy finder, supports file and tag based search.
- Snipmate: heavily inspired by Textmate, tab completion based on snippet files that can be language specific.
- The silver searcher: vim bindings for the crazy fast ack alternative.
- TComment: toggle comments in any language.