Hi, Here's my current set up: I have an iMac with 500GB internal drive, backed up via Time Machine to a physically connected 500GB external drive. I also have a physically connected 1TB external drive which holds my iTunes Library (currently a bit less than 600GB). I allow iTunes to organise files as it sees fit. Thus I have a backup for everything on my internal drive (documents, photos, etc) but not my iTunes media. I am at the stage, I think, where it would be foolish not to have a comprehensive and foolproof back-up solution. I would be devastated if I lost my iTunes or iPhoto Libraries, and seriously inconvenienced if I lost my documents. I want to be covered against drive failure/corruption, burglary and fire so I obviously need to keep copies of everything off site. I have at my disposal: 3 x 500GB external drives 1 x powered USB hub No money! Not even a little bit. Suggestions please! Steve.