I am looking to stick PS on my laptop wich is less of a POS than my desktop but is still not nearly near OT standards, and I really dont want to have to partition the existing tiny hard drive for the OS to use and the other part for a scratch drive. I already have this wirelessly networked to my desktop so I share teh external storage drive there so I really have no need for a large drive anyway. So, about the scratch drive. I have 1 option of just connecting a small portable external hard drive adn setting up PS to use but what I would really love to use is a flash drive, but over 4gb and I might as well use a portable hard drive since a mypassport and a 8gb flash drive are teh same price about. so what is the smalled drive needed that can be used as a scratch drive?