I have multiple Gb's of photos I'll be migrating from Windows over to my Mac (iPhoto). I have them categorized in folders named after the events they represent. I've taken the pictures with various cameras over the years, and there is very little rhyme or reason to the file names. Lots of DSC_xxxx.jpg's, and IMG_xxxx.jpg's, etc. Does it make sense to do some kind of mass file rename before I begin working with them on the Mac in iPhoto?