I want to make a “large hard drive” out of multiple hard drives. I would like to be able to add to this “large hard drive” in the future. I have an Asus A7N8X Deluxe motherboard that supports RAID 0 & RAID 1 with serial ATA drives. I am confused as to what these (RAID 0&1) do. Is a SCSI array the same as using RAID with SCSI drives? I am building a HTPC and the drive I have now is 11GB so it is time to get new drives. I want to make sure that I get the correct stuff. I don’t want to buy a 120GB hard drive and find out latter that I cannot expand it without adding another drive letter. Please excuse my ignorance. And thanks for your input.