Cue another Samsung fanboy.
My main emphasis is on silence, but the P120 models are also fairly good performers.
http://www.scan.co.uk/Products/Produ...oductID=247245
I'm running 3 of the above in RAID 5 at the moment, I've bought 10 or so in the past, and had problems with none of them.
I
think the Hitachi's are also pretty good, but don't quote me on that, as I don't have first hand experience with them.
I'm slightly concerned at the alarming numbers of HDs you have that are failing though...
Depends how long you've had them, how many drives you have total of course, but that does seem like a fair few disks to get through?
Are you giving them enough ventilation?