Mozy is an Online Backup service that allows you to backup copies of your important documents and files to a secure off site location. Previously available for Windows clients there is now a beta version for OS X ( Both Intel and Power PC ). There is a free service which provides up to 2Gb of storage and an unlimited option for $4.95 per month. File transfers are encrypted for security and are block level, which means that if a background backup is going on at the time that you …