I bought a 300GB SATA drive for my new computer simply because it was the cheapest one I could find at the time, I only use around 50GB. As I understand it, if I got another drive that's only 160GB for RAID 0, I would end up with 160x2, right? Is it possible to partition the leftover 140 gigs on the first drive and use that as well...or is it gone?