After reading on this forum, I went ahead and got the superduper program for my backup. I want to be able to back up to my external hard drive. The external hard drive is also where I keep all of my music. I don't want to backup the entire Macintosh HD, all I want to back up is my "Home" folder (picture, movies, documents, etc.). I read on the superduper website that I don't want to use the "erase and copy" or the "smart update" because that will delete my external hard drive (my music) and make a clone of my Macintosh HD. I see there is an option to copy just "user files". When it says "user files" would that mean the same as my "home" folder? Also, what would be the best setup, "copy different files" or "copy newer files" option? thanks for all your help.