Simple put powerfull: adds the ability to reference a css file with a custom field for each article.
Adds the ability to add a custom field with a reference to a css file and generates a css namespace with the class '.artdirected'. This plugin also adds a jquery switch to the top right corner to deactivate and activate the custom styles. A collection of articles which make use of this plugin can be found here: http://www.marctv.de/blog/tag/art-directed-blogging/
This plugin uses ideas and code snipplets from codecandies.