For starters, my computer is a 2007 MacBook pro with 2.2ghz, 2gigs of ram, on version 10.5.8 The computer is older and is not running lion, which I think might be a source for some of my problems. Basically, my free space has been dwindling for no apparent reason. I reluctantly decided to dump a few games and freed up 30 gigs of space, which I thought would last me a long time considering I hardly download anything anymore. Yesterday I started work on a video project, meaning I was taking pictures and video on my camera and syncing it through my computer to my iPad almost a dozen times. Sure enough, at the end of the day, I had literally zero kb of free space. So everyone knows, each video was no more than 100 mb, and I had about ten total, so I am pretty sure that is not the problem. I have since deleted files but it doesn't clear any space, I'm assuming because every available byte goes to improving performance. I even moved ALL of my documents to an external HD, about 20 gigs if I remember correctly, and nothing has improved. I have used the get info function to see how much music, videos, docs, etc. are taking up and it isn't significant: everything big is already on my external harddrive. If anyone has any ideas of how I can see memory allocation, or of how I can fix this, please let me know! I appreciate it!