I noticed the other day that my disc space was getting consumed at an ALARMING rate. Not only that, but that Time Machine (I have a time capsule in the basement) seems to be backing up an EXTRAORDINARY amount of data (15 to 30 GB per "session"/hour). Of my 500GB Momentus HDD, I only have 90GB left. Looking at "About This Mac", I think I found out why. It seems... excessive... that I have 100GB of backups on my local drive when I have a 3TB drive in the basement for backups. Is there a reason for these local backups? Can I disable them? Erase them? Anything to reclaim 1/5th of my harddrive? Thanks!