alot of people have been raving about this drive:
http://www.newegg.com/product/produc...82E16827152046
about Raid, I would *personally* setup a RAID 0, which increases your HD preformance by striping data across two drives (note, that if both drives are not the same, your total space will be as much as the smallest drive in your RAID.
Then I would setup the third hard drive as a backup drive, cause of eather of your RAID drives dies On a RAID 0 configuration, all data is lost in the array.
Of course, I don't know the capacity of your new drive, and 60 is kinda low for a backup drive, or the new drive, since it will probably be over 100, you'll have 50-80 gig.unuseable
You have to have a motherboard capable of RAID (looking on the MSI's website, all thier K8T's do, yay)
As for setting it up, I've never done it. So, RTFM