I'm still deciding what photo management and editing tools I want to use, but could use some help figuring out how to handle the work flow for my images, from import to editing to backup. For example, do I store my images on my internal drive (as I do now for iPhoto), edit them and then backup through Time Machine, or am I better off using two external drives (or three, one for the original files, one for edited files and one for backup)? What format should files be saved in and at what stage of the process? Etc... As you can see, I'm a little clueless and could use a little help understanding what people do and why. Some people seem to have very elaborate systems, but for my basic hobbyist needs, I believe simple is best. Thanks for any help.