Selecting a hard drive for your gaming computer usually isn't a simple case of getting the biggest drive. Let's face it: a gaming machine is all about performance. It doesn't matter is you have several terabytes of disk space when your hard drive is slower than a snail (of course, it doesn't hurt to have terabytes of space).

IDE, SATA, or SCSI?

Almost every modern consumer hard drive will come with a SATA connection. IDE hard drives are a thing of the past, and if you run across one, chances are that its performance will not be up to par with more modern drives.