I just received my Snow Leopard DVD in the mail (WOO!) to upgrade my late-2006 MacBook running Tiger. Unfortunately, my power cord is broken, and I'm waiting on a new one before I can install. Sadly, I do not own an external hard drive. I really don't have a purpose for it. However, I want to do a clean install. Could I backup my files to an online service (I'm looking at Jungle Disk). Would this work? Do you think I would lose any data? I also have some spare DVDs; if Jungle Disk is not recommended, would it be possible to burn all my data to DVDs? Thanks!