If you want an automatic updater, you can get Cosmos, or talk with someone here to get one built-- it wouldn't be too horrible.
When svn.wowace.com/files first went up, I took a couple hours and wrote a script to automagically update & install my addons using that. It's not only easier, but faster than updating with subversion was. I really fail to see the problem with losing subversion access. :)