If you're just looking for a solid portable drive that is more stylish than the rest, the USB-only LaCie Starck Mobile drive () was my personal favorite at the Apple Store. Our lab tests found it to be one of the fastest USB-only drives on the market and it has a thick exterior shell that provides more protection than the average drive. Its built-in USB cable is also a pretty clever feature.

Most users want the ability to use an external hard drive as a backup source for Time Machine. Almost all USB or FireWire external hard drives are compatible with Time Machine, as long as the drive is HFS+ formatted. Depending on your computer's hard drive and your storage needs, 320GB drives and higher should be sufficient for Time Machine backups. If you want more than 500GB, you'll usually have to purchase a desktop hard drive.

: With laptops Macs being Apple's biggest sellers, it's not surprising that the Apple Store only has a few desktop drives in stock. Desktop drives, with their higher capacities, might be pricier overall (typically in the range of $150 to $600), but they often have a lower price per gigabyte. They also often have faster connection types, and cater to a crowd demanding of more high-end features. At my Apple Store, The , the , the , the G-Technology G-Drive, and the G-Technology G-RAID were all available to purchase. On the surface, there's not much separating these drives. All offer large capacities (1TB-4TB) and four connectivity options. Each of these drives has its detractors and supporters as each is produced by one of the major storage companies.

: Before asking advice at any Apple Store regarding which company's drive you should buy, you should recognize that every drive will eventually fail. Some, of course, fail sooner than others. At any Apple Store (or editorial meeting) you'll likely overhear a conversation like this: Person A claims they owned a hard drive made by X brand, and since it failed, they will never, ever buy another drive made by that company. Person B then says that they bought a drive from company Y and will never do so again because the drive failed, ruining their thesis/career/life.

But a drive with a RAID 1 mirrored array provides protection against data failure. If one drive fails, mirrored arrays ensure you still have the data by keeping a copy of it. Of the desktop drives in my Apple Store, only the Western Digital My Book Studio II () offered the ability to configure the drive into RAID 1 array. With its two drives and a capacity of 4TB, the unit provides data protection and a large storage capacity--perfect for someone on your wish list who is swimming in media files.