Hello, How are you? I'm trying to start a new workflow and file management, but I'm kind of lost. I currently have a 27 2011 iMac. The computer is excellent and it serves well in terms of display and processing power. It has a 1tb internal HDD. I want to use Lightroom to manage and do some basic adjustments to the files, and the ones who need it, deserve it, would be edited in Photoshop, but through Lightroom. I shoot raw plus jpeg all the time, with results in CR2 and jpeg files from my 5D and ORF and jpeg files from my Olympus. Because storage is not that expensive I was thinking to store and save the CR2 and ORF and Jpegs and them use DNG in Lightroom. Do you use DNG? Is it a good option and worth it? My idea: - Take pictures. Copy pictures from memory card to an external HDD 1 (2.5 inch probably). - Use Lightroom and Import with copy to DNG option from the external HDD 1 to the internal iMac drive. - Use the internal iMac drive as the work drive to store the pictures and edit, manage them. - Have another external drive (3.5 inch), HDD 2 to do a mirror daily backup of the iMac internal drive. - Have an HDD 3 to do a backup of HDD 1 and store off site. - Have an HDD 4 to do a backup of HDD 2 and store off site. Am I thinking good? Is it too complicated and unnecessary? What's your workflow and backup with Lightroom? Please help me out. Thank you. Best wishes!