Mozy is a free online backup service that allows you to take a file level or hard drive level backup to a secure online server automatically. Mozy offers 2GB of server space, 128-bit SSL connection to transfer files and 448-bit Blowfish ncryption to store the files on their server. Until now, only a Windows version of the backup client was available.
Recently, Mozy has released a beta version of a Mac version of their client which supports both Power PCs and Intel Macs offering the features similiar to the Windows version. There are hardly any competitors in the backup/restore solutions area for Mac based computers. Hence, I would definitely recommend this service to any Mac user.

Download Mozy Mac Beta here