set up FTP access. If you're running OS X, turn this on in the Sharing panel.
I created a couple new users and they can log on via ftp and access their folders. 'Their' folders are just account folders that, using root, I've set to be totally open to me for editing (otherwise I wouldn't have the permissions).
This is a fast and effective way to get files from your computer to others, and if you've a fat pipe connection, then the ftp should cook.