Reliability is the thing I would worry about the most.
I've run the Seagate 1.5 and 2 Gb USB drives from BEst Buy for a few years now and have found them to be most reliable and essentially trouble free. They also come with backup software installed which has also been very reliable and trouble free. I see no reason to look elsewhere, there is some motor noise when they first fire up, but nothing of much consequence there really.
Highly recommended.
I've run the Seagate 1.5 and 2 Gb USB drives from BEst Buy for a few years now and have found them to be most reliable and essentially trouble free. They also come with backup software installed which has also been very reliable and trouble free. I see no reason to look elsewhere, there is some motor noise when they first fire up, but nothing of much consequence there really.
Highly recommended.