I'm in the market for a new computer these days, and at the same time I am also looking into different methods to back up my data.

Right now I have a fairly primitive way of doing things: I manually copy over files that I consider to be important to my external hard drive.

I would ideally like to buy a set of 2 new external hard drives, set them up in a RAID-1 configuration (for data redundancy), and then have some kind of application on my computer that does an automatic backup to the RAID every once in awhile.

I've heard the moniker that "RAID is not back-up!" several times, but I openly defy that statement here, as for any normal user RAID can very effectively be used as backup. Most of us don't need nor want slow tape drives.

Anyways, back to the topic at hand: I'd like some software that could then backup the files which I specify that I want to back up to the RAID. Incremental back-ups aren't necessarily necessary, but hey, if that features comes with the software, why not?

I took did a quick search on google looking for "open source backup software", and I found the following options:

BackupPC
Amanda Open Source Backup

I was wondering if any of you have any experience with these software packages or any other software packages that are good for backups, and what yalls experience has been with backups.