I have a nice little Shuttle System, SN41G2V3 to be more precise which supports Raid 1,0 and has an onboard s-ata controller. Currently i am using a Hitachi Deskstar E-IDE hard drive with a 7200rpm spindle speed and 8MB cache. I am considering utilising the onboard s-ata and buying either two 250Gb drives or the seagate 400Gb s-ata drive, what i want to know is: If i got the two smaller drives, what would be my best raid configuration and would there be a huge speed increase? If i got the larger 400Gb drive, will its size do nothing but slow me down? Im not a huge gamer, or video editor or even a music producer. However i am going by the fact that your computer is only as fast as your slowest part and would like to know whether or not i would see any benifits from such a configuration, as apposed to my current setup.