I've had problems with Maxtor, Western Digital, Seagate, and Hitachi drives. The moral of this (very short) story is this: pick the drive with the best warranty and buy it from a retailer with great customer service (i.e. *not* CompUSA if you're in the US).
The Dell workstations and HP servers we buy all ship with Seagate drives. Dell isn't exactly tops when it comes to customer service. HP will replace just about anything for any reason (the old Compaq would even replace stuff that was out of warranty), which is great, because those 15K RPM Cheetahs tend to die rather frequently.
