I need these to be efficient:
NERDTree http://www.vim.org/scripts/script.php?script_id=1658
bufmru http://www.vim.org/scripts/script.php?script_id=2346
bufkill http://www.vim.org/scripts/script.php?script_id=1147
LargeFile http://www.vim.org/scripts/script.php?script_id=1506
