I am buying a used MBP off ebay and the seller is including some software that I'd like to use but not including the discs. Normally, I would reinstall the OS but I don't want to lose the software. The seller asures me that he's reinstalling the OS and then only installing the editing software program. Since his seller rating is very good (100% positive; score of 88) I'm inclined to believe him. My question is, is there any chance of him installing some sort of software program that could somehow send him private information about me like bank account ID's and passwords? Is there a way to check for that? Should I just do my own reinstall (with the OS disc I already have) to be sure? Or is this something I shouldn't worry about? Thanks... Also, I'd appreciate it if responses were kept to the question I asked.