See my post below this for most recent questions. Hi, I've just ordered my MacPro and have been trying to work out how I'm going to keep my data safe. I've got too much data, so currently it's scattered all over the place and HD's of varying sizes, and then all of that is backed up on a 1TB Lacie Big Disk Extreme + This HD has firewire 800 etc, but no eSATA. I've just ordered my MacPro and am all out of money. I want to set up a great HD solution internally, but can't afford to be buying any more hard drives. I just opened up my Lacie 1TB and saw that internally there are actually TWO drives (this probably isn't news to you but was to me). They are both 500GB Baracuda 7200.10 and seem to have SATA power, and SATA Data, as well as a Jumper Block attachments. (I've taken a photograph of the interior) What I'm wondering is whether I could take these two HD's out of the Lacie enclosure and put them inside my MacPro to create a 'data security' RAID system. Now I'm no RAID genius, and I'm sorry but I've tried, I still don't know which one is for me, but I'll quote a passage from Chase jarvis's Blog where he talks about his back-up solution. "this is a giant hard drive (7TB) that writes (and retrieves) data seamlessly over 14 different drives in an array. This is fancy terminology that basically means that the drives all sync together to act like one drive, but in reality they're separate drives arranged in such a way that if one drive fails, the server can identify it and, upon replacing the defunct drive, re-create data that was on the dead drive." He has an Apple XServe RAID, so I couldn't afford that, but... What type of RAID would this be? And could I implement it on my MacPro on TWO hard drives without having to buy the RAID card? Would it be slower than having just one drive? Are the Baracuda drives in the Lacie HD any good? Thank you so much!