Which external HD to get?

[akshatp]

I have put this off way too long and I need to backup my data. One of these days I am going to lose everything and cry.

So help me. I have about 250GB of data on my PC at home, and another 20gb or so on the laptop.

Should i just get a regular WD 250GB passport? Or should I buy an off brand?

Help me pick something.