http://www.ifixit.com/Apple-Parts/Mac-mini-1-TB-Upgrade-Kit/IF107-070 It's a $250 after market kit that replaces the original hard drive and DVD drive with 2 500 GB SATA drives. You can then set-up RAID, either 0 or 1. You even need a Soldering Iron... OK, I thought it was cool. Dave McLaughlin