I played with Aptana Studio for a while before moving over to VIM, and the only thing I really miss about Aptana Studio is the way that in their project view window your file na
For future reference, I created a fork of NERDTree that does exactly that, it can be found at https://github.com/SeySayux/NerdTreeGit .
Please note it's still in development, so it may break. It also contains a few oddities for which there aren't configurable options yet.
UPDATE: The project linked above is discontinued. For a (much better) alternative, try this: https://github.com/Xuyuanp/nerdtree-git-plugin