I am about to install a 120GB SSD in my Mac Mini (8GB RAM) and use photoshop all the time automating actions on large groups of pictures. I have a firewire 800 external 2tb drive with my pictures on it. I also have a 1tb firewire drive, as well as a 1tb USB drive. What is the best way to get the best scratch disk for my situation? Daisy chain the 1tb firewire to the 2tb firewire media drive? Or since the SSD is really fast, should I have the scratch disk on the SSD drive? Also, when working on pictures, would it be best to have them on the SSD, or should I keep all pictures on the firewire drive?