I recently upgraded my Dropbox account for the sole purpose of backing up my 33GB iPhoto library. After 4 days of uploading, my account is sitting at 45GB used and it was still chugging away. Turns out, iPhoto doesn't play with Dropbox so well as there are "symlinks" inside the iPhoto library which cause Dropbox to sync well beyond the iPhoto library itself. So, with Dropbox out of the picture - how should I go about backing up my library to the cloud? I have a Time Machine backup on an external drive, but what if my house burns down? So yah, I need something cloud-based. I have a flickr Pro account but I'm lukewarm on uploading EVERYTHING to flickr.