So i bought a 320GB external HD. 298GB are usable. I have Time Machine on and my external HD space is down to 104GB!!! It's only been a few days! I bought the HDD to be able to store additional movies, music, pics, etc. At this rate, Time Machine will use all of my extra space with backups and I will have no space to store my additional stuff. Anyone know a way so I can keep the extra space available instead of using it all up on backups? I would like to just have a main backup and then use that extra space for my files. Can I delete these extra backups to free space? What can I do? Thanks in advance.