I am a confessed manual backer upper... as Conan is. I don't like that wizard and if you choose to back up everything, it will take quite a few disks, considering my 60-70gigs of sheet on my HDDs... I recommend doing your own backing up of downloaded files, documents, text, favorites, contacts etc...
I feel you have more control over what you want to put on the disk and what you don't want to put on your disk. With a wizard you have categories, and it will back up based on those categories.. it's up to you.
BB