Multiblend
For all the people that want to have an easy way to use distributed rendering with Blender, I have the solution: Multiblend. It is a Python script that feeds chunks of frames to each computer on your network, allowing them to render in parallel and greatly improve rendering speeds.
Multiblend is a Python script that needs only a simple configuration file and a well setup network. Of course, instructions on how to install and use it are on the Multiblend page.