Hi, I'm purchasing a Macbook Pro from one of my friends. I was going to reformat it after he sold it to me but I got to thinking. Will my programs (office, iLife, Final Cut, etc) be erased when I reformat. I don't plan to do the 'erase and install' option when installing where the entire disc is wiped out and reinstalled. My main goal to reformat is to clear out all of his documents, settings, and administrator names. It is running OS X Leopard. My main question is: should I reformat the computer? Any suggestions or help, thanks.