This is my first computer build, it's never been booted up yet and I have everything plugged in (including all the SATA power cables from the power supply) except my SATA data cables and jumpers to the various drives (two hard drives/two DVD drives). I am going to install Windows XP home edition, have two 500GB drives I need to run RAID 1 (I am positive I want them mirrored), and two SATA DVD/CD drives. Which SATA data plugs on the mobo should I plug in to? I was thinking DVD1 in slot 1 (to boot Windows install from), DVD2 in slot 2, HDD1 in slot 3, HDD2 in slot 4 or does it matter? Do you set RAID 1 in BIOS when you boot up first time or when XP installs or ??? I assume it will ask me which two drives to use RAID1 on? Do I need to set any jumpers on the hard drives or DVD drives to make slaves, etc? Thanks for any advice/suggestions...I can explain more if needed...love this site