all things decay. all hard drives fail. they overheat and crash. the best thing you can hope for from a company is a guarantee on the gear. don't expect to see your data again. but you might be able to get a blanket 'im sorry' and a new hard drive in the mail.
seagate is an honest company. i'm still not impressed with their external designs but at least they will replace them for free when they burn out.
i don't care what brand you buy, you will want two. and backup your gear. the question is not about if but when your hard drive fails, did you backup your files? and pray to god that two drives is enough.
take advantage of livemesh for your most important information. with every live.id you get 5gb of free cloud storage. this isn't much, but if you are a final cut guy like myself, this should be plenty of space to store your project files and special files from soundtrack pro or color.
recapturing footage might take time but redoing your work would put you in a whole new world of heartache. in many cases, you will never forgive yourself. kind of like losing your first born child.