I'm in the process of selling my iMac G5 (I'm getting a new iMac). I've got all my personal data backed up onto an external hard drive. The question I have is regarding my G5 - what's the best way of deleting all my personal data on it? Should I reinstall Tiger using the CD that came with the system and do a complete "Erase and Install", or is there a simpler way? Thanks for your help.