Hey Maarten,
The distribution you're thinking of is called Ubuntu Studio ( http://ubuntustudio.org/). It's a derivative of the Ubuntu distribution that focuses on multimedia editing/creation, I've only tried it once, but it seemed to work well. Though I think if you are already running Ubuntu, you can install all the same packages just by adding the Ubuntu Studio repositories to your sources list.
Mediabuntu is actually just a repository of packages that can't be included in the main Ubuntu release for legal reasons (libdvdcss etc..)
Oh and this is my first time posting here, hi!
I've been using Inkscape a little for various pieces of college work and have found it much more enjoyable to use than existing commercial applications. Software is so much more interesting when there is a good community behind it, keep up the good work everybody involved -- developers and users.
Cheers.
Dave
Hey,
I hope you don't mind me contacting you personally, but the phrase "open source annimation kit" sounded to tempting... Wat are the other tools in your kit, if I may ask? Also, I came across a distribution called "MediaBuntu", it might be of interest to you, too, although I didn't try it myself.
Regards,
Maarten