And yes, I do care about my data - I lost too much precious stuff and too many souvenirs over time...
I was considering the Western Digital 500 gb. (WD5000AKKS) or the Raid ed. (but it doesnt seems to be the same HDD, its not a Caviar SE16 but an RE - WD5000ABYS (Western Digital RE2 RAID Edition 500GB SATA2).
I don't know which one is faster , but i was going for the WD5000AKKS. One HDD, but now RAID looks nice. but 4x150$... EEEEEEEEEEEEK.
Plus, im worried about the windows installation and RAID installation in DOS before installing the OS. Ive read the DS3R manual, it looks simple enough, but I don't know..never done that.