Source: Half-Life Fallout

Half-Life Fallout reports the news that several reply's, by Valve employees, on the Steam forums suggest that a backup option, for backing up Steam cash files, games etc, will be added to Steam in the nearby future. This is of course great news for those who buy and play games via Steam and not wanting to download everything over and over after a cleanup of their PCs. Here some quotes:

In the near future you will be able to make a CD Backup of your games.

Also, yep there will be a DVD-sized option for the Backup feature too. It's not going to actually burn the discs, but it will create a self-extracting archive that is broken up into the appropriate-size files.

The entire topic on this can be found here at the Steam forums.