vim makes multi-line edit a breeze as I use the feature to comment out multiple lines. Just use v->ctrl-v to select the lines. Use shift to enter i or r.
RubyHead Short – Vim & Me Part II from Joon You on Vimeo.
RubyHead Short – Vim & Me Part 1 from Joon You on Vimeo.
for toggling NERDTree, from my .vimrc,