"GanttProject":http://www.ganttproject.org

GanttProject is a charting tool written in Java.

It has a simple easy to use interface. You can graphically create tasks, assign resources, plot critical paths and a few other basic project managment functions. 


** Pros **

  * Simple to use

  * Available on all platforms

  * Many charting outputs and third party tools, eg perl scripts to make SVG

** Cons **

  * A little bit beta quality. 

  * Might need a little work if we want to add links to our plone bug tracker from tasks (is has the facility to give tasks url's) 


** Example **

<a href="./openCMISS.gan/view">ganttproject input file</a>

Example image output. It can also do html, pdf, svg and other format outputs.
<img src="openCMISS.png"/>