Backup4all is a very powerful backup utility for the protection of all your valuable data from total or partial loss using an intuitive interface to define customized backup configurations.
It will quickly allow you to set the compression level to increase speeds while performing the backup process, or to minimize the archive size. It will also perform an incremental backup for the purpose of keeping track of file versions.
Backup4all will work with any drive letter as well as mapped network drives and UNC paths. You have the option to back up to inexpensive CDR/CDRW media if you already have installed the appropriate drivers on your machine.
Version History for Backup4all: http://blog.backup4all.com/tag/changelog/