You need the SATA drivers for RAID, not the SSD's.
Since you have an AMD CPU, you probably have an AMD chipset that run the SATA controller. THis is the driver you need. Check your mobo manufacture.
Windows (7) only reconizes Intel based chipsets on install (up to Z68?).
And like they all said, one SSD will be enough! You won't notice the difference between 1 SSD and 2 in RAID 0 (if they are SATA 3). So go the way without the risk.