I have an iTunes library that's all in Apple Lossless format and over 10,000 songs deep. I have two copies of my library... one on an external HD and one that I access through my time capsule. I'll be going on the road soon and will be taking my MacBook and no external HD. I want to keep my library in Apple Lossless format, but would like to have a copy of that library in AAC so that I have enough room on my internal HD of my MacBook. IS there an easy way to do this? The only thing I can think of right now is to select ALL of my library, and convert it to AAC and then drag and drop all of the AAC files onto my laptop. There has to be a better way to do this, right?