So I have a 500GB HD I put in my 2011 MBP and according to profiler I've got 146.73 GB free but I know that I don't have 350GB of data on my hard drive. According to profiler (Lion) I have Audio=13.48GB Movies=90.92GB Photos=23.97GB Apps=9.82GB Backups=11.72GB Other=202.6GB. What are the "Backups" and I'd really like to know what I have that is 202.6GB of other. Is there a way to tell what this is and is there some kind of app that can give me a complete inventory of what is on my hard drive, where and what size? It looks like I may have to do a clean install to get my space back but I'd like to clean up first before I resort to that.