I want to backup my laptop hard drive that's at about 115GB but I only have an external 120GB drive. From my research I've seen most people use a combination of Time Machine plus Super Duper. And in most of their cases they also had more wriggle room in the space department for hour by hour or day by day backs up. So anyways, what would you all recommend for backing up my hard drive if I can only use one software with a space available very similar to laptop disk space? Week cloned copies? Just carry on with Time Machine? Any thoughts? Thanks.