My laptop has two 100 gb 2.5" Seagate 7200.1 drives configured in RAID 0 in an Alienware laptop. I have about 140gb of data on both drives. I am planning to take an image of the drives with ACRONIS 10 and backup to a 750 gb external drive. I would then like to replace the 100gb 7002.1 seagate drives with two 160gb 7200.2 seagate drives. Is it possible to restore everything back to the two 160gb drives (op system, programs, etc)? Or do I need to purchase identical 100gb drives?