My system recently went tits-up and I'm now considering having a RAID 0 set-up for the hard drives for improved performance. I've never personally had a hard drive fail on me and so I'm not overly worried about the fact that if one drive fails, the whole RAID drive fails, although I'm still interested in hearing from people who have suffered from this problem (along with the make and model of the drive that failed). I've read conflicting reports about the performance gains, with some people saying the gains are minimal, while others saying the gains are great. With hardware based RAID 0 I would expect the performance increase to be nearly double that of a non-RAID 0 system. I wanted to hear from people who are running RAID 0 systems exactly how much better/faster a RAID 0 system is, including a rough percentage of the increases in performance that can be expected. I'd also like to hear of any downsides (if any). Lastly, can I set-up more than 2 drives in a RAID 0 configuration as a lot of the new PC's seem to support at least 4 SATA drives, so would I be able to set-up these 4 drives in RAID 0 to act as a single drive ?