Try SmartDraw. It's easy and the results look great. You can use it to make Gantt charts, timelines, etc.  You can download a free trial here:
http://www.smartdraw.com/specials/projectchart.asp

In addition, the software does lots more, such as workflows, floor plans, org charts, mindmaps, decision trees, software design, engineering schematics, and more.

Hope this helps!
Christine