I am currently running one WD 200GB SATA Hard Drive and I was thinking about purchasing another hard drive, same exact model. Here is the thing, I have no means of backing up all of the data that I've collected. I know when I first installed the one drive, I had to create a RAID array I guess. When I did that, the setup said something about losing all of my data if I were to continue, then I had no problem with it, nothing was on the disk. But now that I want to add a second drive, I don't want to have to go through all of that again. I would like to have an additional 200GB of storage, but if that can't happen, I'd want to setup mirroring, or possibly duplexing (the mobo has two hardware controllers). Any suggestions on how I could do this without losing any data?