Was planning on doing a clean install on Lion on a Late 2010 MacBook Air. Two problems: 1. Is backing-up iPhoto 11 library and iMovie 11 and restoring them the same process on Lion as it is on Snow Leopard? Do I just back up certain files/folders and then put them back once operating system is reinstalled? (Not compatibility issues?) 2. My MacBook Air came with a USB stick (can't remember where I've put it, but it'll be around) and I presume iLife must be on it. Once Lion is installed, do I just plug in this USB stick and install iLife from there? Thanks!