Concerned that I would eventually run out of hard drive space on my Asus Eee PC 901XP, I decided to get a usb hard drive. Of all the drives out there, I went with the Western Digital My Passport Essential 320GB USB 2.0 Portable Hard Drive.
I have used the Passport before and I like its compact size and high-capacity. It's powered through the usb port, so you don't have to carry an AC adaptor to use it.
The WD My Passport drives comes in various colors. I chose Arctic White to match my Eee PC.
Yeah, I can be very vain with my computers.