Best way to erase personal data on iMac G5

[sers]

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.

 

[Koodauw]

Best thing you can do is to re install the os and use disk utility to erase all the content on your machine. You most likely would want to use either the 5 pass or 7 pass option