For those who downloaded the original “Create Dropbox Collection” service and experienced errors, a new version has been posted (all download links updated). The issue was that if the files were in the root of the Public folder, it was trying to find a sub-path that wasn’t there. All patched up.
Create Dropbox Collection v1.1
An OS X System Service for creating an HTML file with lists of links to files in your public Dropbox folder.
Updated Wed Mar 07 2012.