How to initially check out the Subversion VCS source tree from the "Lunatics!" project. You need a password to follow the RapidSVN client instructions (although you can access the source through the web-based Trac client). This may be of general use for Subversion and RapidSVN users, although the URLs will be different, of course.
The Subversion server can be set up in various ways. Ours is one of the simpler arrangements. We're just using it behind Apache, with Apache providing the secure shell (with a self-signed certificate), and authentication.
To get RapidSVN for Windows, Mac, or Linux, visit their site:
http://www.rapidsvn.org
Other options for subversion client:
kdesvn ( http://kdesvn.alwins-world.de/ ) (Also probably available from your distribution's package archive)
TortoiseSVN ( http://tortoisesvn.net/ ) is a good option on Windows.
And there are others, see http://en.wikipedia.org/wiki/Comparison_of_Subversion_clients .
The biggest problem with access is getting around the self-signed certificate. There's really not much reason to worry about certificate authorities for a site like ours (we're just using secure shell to avoid sending passwords in plain text), but browsers and clients are built to distrust self-signed sites, so you'll have to agree to a security exception to access the site.
The source tree for the "Library" alone is about 2.5 GB. The "Episodes" folder is a lot larger, mainly due to audio files. I'll record a separate 2 Minute Tutorial on the structure of our source tree.