So... I was thinking about reinstalling my OSX on my Mid 2010 Macbook Pro without Super Drive, but two hard drives (SSD 64GB + 1TB SATA). I am using it since May 2010 without reinstall. When i installed the SSD i just cloned the system from the old HDD to the new SSD. My Users folder and therefore all my pictures, videos, documents, music is on my SATA non-system-drive. The SSD is used as boot disk and for the Applications folder. All of this makes reinstalling a bit difficult. I want to get rid of some stuff i don't use anymore (apps and tweaks more or less) and want to start with a fresh system, because the free space on my SSD is down to a few GB's. I would love to hear some ideas on HOW to do this best and most efficient. What i want: keep all my libraries in iMovie, iPhoto, Lightroom, Aperture, iTunes WORKING have a backup of the current state, incase i can't get something to work (clone SSD on external drive) get rid of all the stuff that clocks up the system over time and reduce used space on SSD again Any help and input appreciated!