I'm going to be ordering my MBP within the next few weeks, but I don't think the 100GB is going to be enough for me. I have never owned a notebook or Mac before, so I don't know if you can add to the hard drive. I decided to get an external hard drive with 80GB on it. I have been looking at the SmartDisk FireLite because it's been getting some great reviews. I wanted to put my XP and windows stuff on it, and I've found a few people who have done that. I wanted to know if anyone here had, and how it works for them.