Photos: PCs add more drive

Multiple hard drives in a PC aren't the norm--unless you happen to be a computer game enthusiast. This Dimension XPS Gen 5 from Dell can hold up to three hard disk drives for a total of 1.5 terabytes of internal storage.

Many companies give PC customers the option to purchase additional hard drives for extra storage or instant backup. This 80GB Serial ATA Hard Drive from Hewlett-Packard sells for about $79.