I have a MacBook from Christmas 2009. I'm very happy with it. I am using an external HD, a Western Digital Passport with 500 GB for my Time Machine backups. The MacBook seems to have a 250GB hard drive, but no firewire connection. So far I have used up about half of my WD Passport external with Time Machine backups. I have about 6500 photos and almost 12GB of iTunes music, and I don't want a catastrophic failure to cause me to lose it all. In addition to the Time Machine backup, I'm considering using Carbon Copy Clone with an additional external hard drive for a complete backup. I'm not very Mac or programming savvy, so I'm looking for an idiot proof method. What do you guys think of CCC, and what size/brand external HD do you recommend? I think CCC has to have an HFS+ formatted drive. I don't want to keep it connected all the time, but I would like to occasionally clone the MacBook harddrive so I always have a fairly current bootable backup. I appreciate the opinions of you guys with a lot more expertise than I have.