If you have two hard drives, chances are that you purchased one of them from a store. Chances are very good that this store sold it in a box with instructions and a CD; if not, you probably bought an OEM drive from someone like NewEgg or TigerDirect and know what you're doing anyway. Further, it is certain that the CD contained in this box contained shit that could be done to the drive, and for the bigger brands like Maxtor and Western Digital these CDs have bit-for-bit copying. Convenience and not having to worry about stuff come in the box.
Some people just like to pretend they're solving problems by throwing money at them. This attitude is why most people fail at life.
Jeff