I have an idea for people that have scsi hard drives but don't have them in use all the time. I have a scsi HDD as my second drive and it always spins creating heat and noise, when I leave my computer on to fold protiens or when I just won't use the drive I unplug the drive to stop the noise and heat. I want to install a switch that turns the drive on and off. I was thinking of putting the switch on the ground wire. I hope that would work, it would be one of first mods that I thought of myself.