Bee Docs’ Timeline lets you create timelines on your mac.  Now, I’m not sure who the key demographic is here, but I’m sure it’s useful to someone!  I haven’t had to make a time line since the science fair in grade school, but maybe you can use this application.  It really is a super quick way to create timelines of events.  You can watch a couple of videos on their site and see them create some timelines at a pretty quick pace.  It’s a cool application, and if you need a timeline quickly i’d recommend it over laboriously struggling with a Photoshop type solution.  But, it is 40.00, so you better make sure you need a lot of timelines.