@Bob said:
Depends on whether you believe google's recent white paper or not.
Temperature didsn;'t have too much effect - don't get me wrong, it had an effect, but not that pronounced.
Read the article a little more. Their conclusion that temperature's didn't have an effect on life span was based upon temperatures that varied within 70 - 80 degrees, which is within the operable temperature range. They did not include any results about hard drive temperatures in extreme ranges (either plus or minus).