Tabdir - http://plugins.intellij.net/plugin/?idea&id=5045
Awesome replacement for IDEA's 'Show directory in editor tabs for non-unique filenames'. If you have same named files in different directories this plugin will allow you to have directory names added to tab labels. It only shows path differences so if you have "blog/controllers/index" and "news/controllers/index" it will add either [blog] or [news]. In setting tab Tabdir you can control how prefixes will be formatted. Note: that you should turn off IDE Settings → Editor tabs → Show directory in editor tabs for non-unique filenames.
Bash Support - http://plugins.intellij.net/plugin/?idea&id=4230
Bash 4 support for InteliJ IDEA 10. Supported are, among other things, syntax highlighting, rename refactoring, documentation lookup and various inspections with quickfixes.
CSS-X-Fire - http://plugins.intellij.net/plugin/?idea&id=5348
Connects Firebug CSS editor with any IDE with CSS capabilities (IntelliJ IDEA Ultimate, PhpStorm, WebStorm, PyCharm, RubyMine).
Please read the installation guidelines here: http://code.google.com/p/css-x-fire/wiki/Installation
Style with pleasure!