FuzzyFinder is a useful Vim extension that I've discovered recently (nothing to do with Fuzzyman). It has proven to be a great productivity enhancer, especially when dealing with large codebases with many files.
FuzzyFinder provides a mechanism to search through files on disk or Vim
buffers using fuzzy filename matching. When activated it interactively searches the
current directory for files matching the name you entered. Matching
is very loose, so if for example you enter "abc", you'll get a list of all
*a*b*c*. It sounds strange at first but is very
effective in practice.
Here's a screen shot of FuzzyFinder when first activated. A list of all files in the current directory is displayed. The arrow keys can be used to make a selection from the list (useful if you can see what you want). If the list is long, start filtering!