I'm finally getting around to digitizing all of my old photos. I'd like your opinions on scanner types. Whether I'd be better off with a dedicated negative scanner such as the Nikon Coolscan, or a flatbed scanner with film adapters. I'm leaning towards a flatbed model since I know that a lot of my old childhood pics are probably missing their negatives and the flatbed would at least give me the option of scanning a print if the negative is missing. Are there major speed differences between the 2 scanner types as I'm going to have a lot of scanning to do?