Before you respond, please read what I use it for: - iPhoto 50GB library I just have lots of pictures and I create events for each social event. Thousands of pictures - iTunes 15GB Just keep the songs I like - iMovie I do some minor editing once every few months - Internet - Chatting (including video chat) - no games - optical drive required very seldom. Portability is an issue for me. The more portable it is, the more I will use it. I have a flickr account to upload full res pictures so technically I only need to keep a smaller version. Does anyone know of a tool that can batch this? I have an external hard drive to store iPhoto backups and time machine to do that jazz. Do you guys think the AirBook will be powerful enough? If anyone can provide good back up strategies, that would be great!