I had to replace the hard drive in my laptop, so I selected a Seagate! Seagate, from California, is one of the defacto oldschool brands, but I was happy to find they make notebook hard drives as well.
I found that this was a performance boost over my old drive (and as it is 120GB, it's also four times larger), and I was happy with my purchase partially based on name brand. It's all made overseas, but you just can't find an American-made hard drive anymore.
However, while the Seagate Momentus line of hard drives has impressed me so far, there have been two drawbacks.
First, the drive is noisier than my old one. With this one you can hear a slight whirr when it gets going. However, this noise stops after a few minutes of use.
I also found that the drive works faster, but has a slower startup time with WindowsXP. I haven't done anything differently to my computer except put in a fresh hard drive, but it takes a few clicks for it to activate and load up XP. Go figure, considering this has a faster read/write cycle than my old one.
What I found was the Seagate Momentus is fairly priced and it seems to work well. I expect four years of service from it -- we shall see how that works out.