Hey folks, I was thinking about adding a second SSD to my 2012 (2.3 Ghz i7, 16 Gb RAM, 512 Gb Samsung 840 Pro) Mac Mini. Want to install it internally to have maximum speed and USB ports. I want to add it to speed up Lightroom and am wondering which configuration would work best. 1) Lightroom preview and cache files on new 250 Gb SSD - OS, program files and docs on existing 512 Gb SSD - Raw images on existing external USB HDD. 2) OS and program files on new 250 Gb SSD, Lightroom preview and cache files and Raw files on existing 512 Gb SSD - other documents on external USB HDD 3) Create a Raid 0 setup with new 500 Gb SSD and existing 512 Gb SSD for everything exept Raw files, they will go on external USB HDD. Any recommendations on the choice of setup, or tips for another setup will be very welcome!