I've just purchased a new Dell PowerEdge 2800 ( 3.0 GHZ Xeon, 1 GB RAM), and I will be using four 300GB SCSI drives for storage. I have considered many different RAID options and I'm having a hard time figuring out which one would be best. I would like to take advantage of as much storage space as I can out of the four drives, but I also want to have fault tolerance in case a drive fails. I am also worried about performance. I don't want a whole lot of processor overhead that seems to come with a fault tolerance set up. What RAID is the best? RAID 0? RAID 1? RAID 10? RAID 15?