Here are the binaries for the Subversion RSS Log post commit hook that I created in C#:

 SubversionRssLog.zip

This doesn't have a readme.txt yet, but I wanted to put up a download for those that wanted to play with it right away. This requires that you have .NET 2.0 installed in the machine that is running Subversion. So the instructions are:

1. Unzip this file into your repository's hooks directory
2. Edit the post-commit.exe.config file
3. Let it rip!

Enjoy!

PS. Feel free to give me feedback on this.