alright, I'm once again thinking about selling my desktop and getting a laptop. But I'm so god damned paranoid that I don't like the idea of selling my computer to other people I don't know, BUT no one around here wants to pay a pretty penny for an XPS, so the 'net will be the only way to go. The thing I want to ask if is there a way to make sure every last bit of information is erased from this computer? Like I said before, I am paranoid as hell and I want to make sure my credit card numbers, bank numbers, and passwords and such can't be retrieved from some program if I reformat it. Will a simple reformat wipe it clean and prevent stuff like that from coming back or do I need to go one step short of completely smashing/replacing the HDD before selling? thanks!