Not sure about overall feature sets, but if Gantt charts are all you want, try out redmine (http://www.redmine.org/ http://www.redmine.org/). It's an open-sour

Not sure about overall feature sets, but if Gantt charts are all you want, try out redmine (http://www.redmine.org/ http://www.redmine.org/). It's an open-source issue-tracker that has Gantt charts out of the box.