I found a potential buyer for my PC. He (or they based on the use of the word 'we' in the emails) is/are meeting me this morning around 11 to pick up the machine and pay me in cash. They seem completely legitimate in the emails, leaving the full name of whoever was typing and also a cell phone number so I could contact them and work out a suitable meeting location. Being the paranoid freak that I am sometimes, I want to do everything I can to make sure I don't get "jacked", "ganked", or any other way there is to say "screwed over" (also not getting beat up or shot would be great). I don't want to not sell the machine to them as I really need the money and they made me a very nice offer, IMO. So what can I do to make sure that nothing goes down? I've done everything I can to make sure they don't and won't get any personal information about myself. I told them I don't have a cell phone so they won't have my number, we are meeting quite a ways from where I live, and I'm going to format the PC's HD today before I go.. (can someone confirm whether or not formatting the disk will be sufficient enough to keep them from recovering data? I'd "zero" the drive, but I don't know of any free software to do so) ..so, any suggestions on how I can make today go as smoothly as possible?