Just yesterday my main harddrive in my stationary computer malfunctioned, so i lost around 300gb of date. and ofcourse everything of importance was on that drive. everything from personal document, cryptology keys for the netbank, music and the likes. I am currently looking into building some small raid system proberly 2×40-60gb ATA drives but if you got any advice on the matter please feel free to leave me a comment.
Wouldn’t it be cheaper to make backups on DVD-RW from time to time?
Otherwise I would just buy an external drive (USB/Firewire) that have a button on it which automatically starts the backup process… Yes, people are lazy to configure any software, but pressing that big button is fun from time to time 
Using a RAID 1 system would make it a lot easier than pressing a button. Also it quarantees that the backup is up-to-date, where as the DVD-RW and the external harddrive solution does not.
I must admit however, that I myself uses a mix of the two bad solutions.. not out of want but out of option.
Just what I was thinking of
I have been looking around and found a NAS box without hd’s that support RAID mirroring. The one that caught my attention was the SC101 from netgear
http://www.netgear.com/Products/Storage/NetworkStorage/SC101.aspx
It is affordable and looks like it will do the job, 6-700 DKK for the box, and then 2xHD’s on top of that sound to me as a nice and cheap NAS RAID solution
The other one I have had my eye on is the TeraStation Home Server 1.0TB as i got 1gbit instead of the 100mbit the netgear one offers, it comes with a preconfigured drive solution, so no need to go buy extra harddrives.
http://www.buffalo-technology.com/products/product-detail.php?productid=142&categoryid=29
It is 2 widely different products and I really need to find the price on the later before deciding