The iF.SVNAdmin application is a web based GUI to your Subversion authorization file. It is based on PHP 5.3 and requires a web server (Apache) to be installed. The application doesn’t need a database back end or anything similar, it completely based on the Subversion authorization- and user authentication file. (+Inludes LDAP support for users and groups)
Documentation about installation and configuration can be found on the project homepage. http://svnadmin.insanefactory.com/
Manuel Freiholz (ifsvnadmin@insanefactory.com), insaneFactory.com
In case you feel happy with the application, got a lot of money to waste and don't know where to put it... you might consider to spend it on my Amazon wish list.