pathogen.vim
Manage your 'runtimepath' with pathogen.vim. In practical terms, pathogen.vim makes it super easy to install plugins and runtime files in their own private directories.
NERD Tree
The NERD Tree allows you to explore your filesystem and to open files and directories. It presents the filesystem to you in the form of a tree which you manipulate with the keyboard and/or mouse. It also allows you to perform simple filesystem operations.
Ctrl+N - Toogle NERD Tree
MRU
The Most Recently Used (MRU) plugin provides an easy access to a list of recently opened/edited files in Vim. This plugin automatically stores the file names as you open/edit them in Vim.
Ctrl+M - Open recently used files
Conque
Conque is a Vim plugin which allows you to run interactive programs, such as bash on linux or powershell.exe on Windows, inside a Vim buffer. In other words it is a terminal emulator which uses a Vim buffer to display the program output.
:ConqueTerm bash
:ConqueTerm mysql -h localhost -u joe_lunchbox Menu
:ConqueTerm Powershell.exe
Shift+T - Open bash
rails.vim
matrix
Just Matrix screensaver.
:Matrix
Rainbow Parentheses
Rainbow colors for parentheses, based on rainbow_parenthsis.vim of which there are multiple versions by Martin Krischik, John Gilmore, Luc Hermitte, and Steve Losh.
How to organise vim plugins.
Vim Splits: A Guide to Doing Exactly What You Want.