If you put Drive 0 in as your current data drive and want a RAID1 then put a Drive 1 in with identical specs the RAID drivers should automatically start the R1 process.
Oh and don't try putting your SATA cable into the jumper pins of the drive, it will fit but the drive will not respond

, minor panic when I tried that.
I like Maxtor drives, the MaxDrive config utility is good too. Their SATA 120Gb 8mB cache 7200RPms are pretty good value.