Datawrapper version 1.0, also aimed at journalists who need to make quick and easy online charts, launched last November. This is an open-source project from ABZV, a German institute that trains print journalists. You can host your own version -- it's written in PHP -- or opt to use Datawrapper's hosting infrastructure (currently on Amazon) and embed charts on your website.
There are less than a dozen chart types, and even those have pretty limited customization. But if you're short on time and design expertise, you may want to check this out.
Find it at: http://datawrapper.de