I do my shopping user-ratings homework with the following pattern: I look up a drive's user-ratings on TigerDirect & NewEgg. Importantly, I don't only look at a 4 1/2 out of 5 ratings on its own, but check the ratio of high ratings vs. very low ratings. Often you'll note that 20% of the raters gave it a very bad rating because it was either DOA or crashed withing a few weeks. I've observed, for example, that no one seems to really make a reliable drive over 1 TB. A fraction of them work well, but far to large a fraction are either stillborn or go out soon after the user loads all of their data. If you can find one with a drive that's not made in China, you'll probably cut your risk significantly (but it cost money). Philosophy: Even for free, an unreliable Hard Drive is severely overpriced.
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"As far as we know, our computer has never had an undetected error." - Weisert
"If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010