I recommend the Hitachi Hard drives, called G-Raid Drives, MyBook Studio Drives (use western digital hard drives) or external drives that use Samsung Hard drives.
here are their websites:
G-Technology -->>
http://www.g-technology.com/
MyBook -->>
http://www.wdc.com/en/
Samsung -->>
http://www.samsung.com (look for hard drives in search area)
I have had the Seagate, Buffalo and Maxtor hard drives crash on me several times and these that I have mentioned have worked for me well and in reviews have made many people happy.
Good luck with finding the one your are happy with.
-Raymond Tuquero-
Houston Based Freelancer
http://www.rtuqvidere.com