I published some time ago a plugin for Sublime that makes my life easier when working in node.js. It allows me to introduce
require calls by searching for the files in the current folder.
⌘⇧m, then I search the file/module I want to require and it automatically calculates the relative path. Also I can use it to introduce require to native modules, or the modules I've installed on my node_modules folder.
Here is a short video:
You can install it with the Sublime Package Control, source code is here.