When I posted a brief comparison to Amazon S3 and Dreamhost one thing I didn’t do was suggest how one could actually use Dreamhost in a similar way as S3, like backups. For S3 Jungle Disk is one option for backups. Now there is a how to on backing up your Mac to Dreamhost (part 2).
What this approach doesn’t do that Jungle Disk does is encrypt the files on your remote backup. But on the other hand S3 has a file size limit of 5GB, as long as it isn’t between 2GB and 4GB. So really S3 on supports files sizes from 1-2GB and 4-5GB. Each method has pros and cons.