Um, I know you didn't ask this, you SPECIFICALLY asked about external HDs, but...
why don't you just replace your laptop's internal HD with a newer, larger one?!?
Guess I forgot to mention that my laptop is owned by my school and I can't make any modifications to it until I buy it out at the end of senior year (currently a junior). And because my parents already told me that they're gonna get me a new laptop for when I go to college by the time any modifications are made my sisters will be using it...
Now to address the rest of you:
sæs: I'm not a techy, you're going to have to explain to me what Firewire is so I can answer your question
Kiwi: Yes I am looking for something that can be connected via USB, and I will look into the one you use, however, I don't need something that big, possibly only 80-100 gb will be plenty (I'm not trying to download these massive files, and my computer can't run most of the games that require that much space)
carl: That's kinda what I had in mind (the going to Best Buy part, not the 20TB server part
)