Sure, your computer needs external storage — but what about your iPad? The Seagate GoFlex Satellite ($200) is ready to provide your nearly port-less portable with a healthy 500GB of storage, thanks to a built-in Wi-Fi connection that can provide up to three devices with simultaneous access to movies, music, and other media, for up to five hours per charge of its internal battery. Of course, there's also a USB 3.0 port for connecting to a Mac or PC.