How's it going?
There are a couple of ways to go about this. You can purchase an "external" hard drive which simply connects to your current USB port and it "runs" it's simple, doesn't cause a major drain on your computer's power supply and will show up on your computer as another drive. They are more expensive than an "internal" drive.
To connect an "internal" drive, you'll need enough room in your computer tower, plus you'll need to set the "jumpers" on the hard drive as "slave". (The jumpers are a small plug/switch on the back of the drive and are easy to do. Normally, there are instructions on how to set them and where to plug in the cable/cables. The link below should help walk you through it.
Installing A Hard Drive - Step by Step
It's your choice as to whether you want to go "external" or "internal". While the internal is the most common, the cheapest, and the fastest....some folks prefer the external drive because it can be removed easily and moved to a remote location, plugged in to a secondary computer, and you have a shared drive on a second machine.
Hope this helps.
I already have a 40gb hard drive by western digital. It works great... quiet, quick, and plenty of room. However, I recently got addicted to some show that I can only see from my computer. Thus I need a lot more room on my hard drive... I want to add another hard drive so that I don't have to set everything up again (windows, my internet connection, music, etc). I was planning on getting a hard drive with less performance but with much more space (120gb-160gb). Is that a good idea? Also, I have no idea how to set up this second hard drive... I don't know the difference between the master/slave thing... I read several of these forums but I can't find one that matches my problem exactly (explains how to set it up in detail or in a simple way). Thanks.