I am parting out my Rev. A TiBook because the display died and I just bought a 17". Since this is a one-time deal, I really can't justify the $30 pricetag for SuperScrubber (and much to my chagrin, the demo version didn't actually "do" anything). Since I don't have any information vital to National Security on my old hard drive, is the "8 Way Random Write Format" option in Panther's Disk Utility a reasonable length to go to to protect myself from identity theft, etc.?