Well, I want it so if a drive fails, they are still backed up still.
I want to store loads of synths on this new drive you see (each one can take up around 30gb) for my music, and so I do need a fast set of drives.
Now I understand RAID 1 is faster at reading (and it is), though slower at writing (which wouldn't really be a problem when reading WAVES to play in a sequencer.
So, should I just get a fast drive and forget about the backup's seeing as...
ah...never mind, I think I do still want a backup.