Both WSS 3.0 and MOSS 2007 come with powerful task lists to help your team communicate project status and performance. Additionally, Microsoft went above and beyond by creating the 'Fabulous Forty' application templates for Windows SharePoint Services 3.0. They're useful, effective and... FREE!
TeamDirection's IntelliGantt software takes your project data in Microsoft Project or IntelliGantt plans, packages them up and shares it to these templates. Better yet, the IntelliGantt Add In and the IntelliGantt Rich Client can receive updates from SharePoint and merge them back in to your project plans. You can choose whether to use a simple web UI like the Task List, a richer web UI like the Project Task List and its Gantt View or the richest web solution for Project Management-- extremely useful 'fabulous forty' templates like Change Request Management or Budgeting and Tracking Multiple Projects.
We've taken the most common customer requests and created helpful how-to guides oriented for SharePoint:
Finally, we've created a guide to help you customize SharePoint task lists by turning various field properties on or off. With our 'Workspace Settings', you can control exactly which fields are sent to SharePoint, how they are displayed and whether they are only for reading or support full two-way synchronization.
If you're looking for even more information on IntelliGantt, we also have an API that is available so that you can enhance any product with SharePoint connectivity.