EmailDisk is a silly little AppleScript application for people who are too cheap to buy iDisk or a flash drive and too lazy to email themselves backup important files. It's ideal for email accounts with a large capacity such as gmail or gmx.
Open the application to set your email address. Then just drag and drop files to the icon to have them automatically sent with the file name and EmailDisk in the subject, for easy auto-filtering. You an set up your email to filter these out to their own folder.
This is free to use and distribute, though I'd appreciate an email if you like it.