Hello, I'm desperately trying to erase the hard drive on my Mac Mini so that I can sell it. My problem is that I've had it 4 years and have no idea where either the OS X install or system restore disks are. Is there ANY way I can delete my personal information so that it's safe to sell without: a) Finding the disks (believe me, I've turned the house upside down) b) Going through the folders one by one and deleting things c) Paying for replacement disks (I've just spent £1200 on a new brand new imac - I don't think apple need any more of my hard-earned!) I've been trying to find an alternative solution for three days and I'm starting to go slightly mental. It's a Mac Mini with Intel Core Duo processor, running Mac OS X 10.4.8. PLEASE HELP ME!!