Reviews of Hard Drive Reliability?

ewhac asks: "After having three 18G drives go toes-up on me in the last two months, all of them done so after about 40 days of use, I want the replacement drives to be rock-solid. While Tom's Hardware and AnandTech review individual drives and their performance, I haven't yet been able to locate any comprehensive or cohesive review of drive reliability and longevity. Does such a resource exist?"