I have a MacBook Pro, and would like to have my hard drive's icon to be a picture of the computer like I have seen on many people's desktops. Also, I'd like to have the details (size, available space) of the drive displayed along with the name. Another thing I have seen that I like is that some people have an invisible dock, with only the icons showing. As of yet, I have been unable to do any of these. Any help?