Summary: The 7200's are notorious for problems so you have to be prepared. These drives were updated by seagate after their production due to on-board circuit problems (or so I read). To date I've purchased 6 total, but two of them were DOA and needed to be RMA'd for new ones.
Pros: Good value, good performance compared to other 7200rpm drives
Summary: It died after 25932 hours (i.e. 1081 days) of use. Thank goodness to its S.M.A.R.T., it warned before its death so I had the opportunity to back up. Its temperature is 45°C while the temperatures of other drives in the same case are below 40°C
Summary: When SMART starts to report bad sectors, you have about 3 weeks to evacuate the drive before failure. When it starts clicking, you will have lost a significant amount of data. I was fortune that I had backed up and only lost about 30 GB of replaceable files.
Pros: Worked reliably for 4 years. Was fast enough to stream HD videos from.
Cons: Failed in 4.5 years (click of death). Performance started to degrade after about 3.75 years. Warranty is only 2...
Summary: I ran 7 of these drives in a linux raid 6 array running 24/7. Average temperature readings for the drives were approximately 28 to 34 degrees C as reported by the drive. All drives were shipped with the CC1H firmware after some issues arose from various customers.
Pros: + Best price per GB (when purchased in Aug 2009) + Great sequential performance
Cons: * High failure rate (4/8 drive failures*) *failures are not catastrophic, but decommissioned based on the recommendation of the smartctl reported data. 4 of the 8 drives encountered 1000 to 4000 reallocated sectors per the smart ctl stats.