More Mac 101, our series of basic tips for new and returning Mac users. Since most Mac models don't offer extra drive bays, external hard disks are the way to go for adding vast storage capacity to your computer. External HDs are great for storing large projects, moving huge amounts of data from place to place, or backing up via Time Machine. Hard disks are a commodity product nowadays: the market is flooded with a cornucopia of options, most of them cheap and easy to install. So which is right for you?
The trick is this: find out who makes the actual hard drive inside the external enclosure (that is, inside the nicely-designed plastic or metal box that sits on or under your desk).
It's what's inside that counts, and we'll explore after the jump.
If you're as burned out about iPhone rumors as we are, maybe rumors of new storage capacities (finally) coming to the iPod can grab your attention. Engadget 
Who doesn't love tiny little hard drives with lots of capacity? Seagate recently 
According to
Macworld, 
