Most recent hard disks do include S.M.A.R.T. support. You might find interesting to read the "What is S.M.A.R.T. and how can we use it to avoid data disaster?" article. S.M.A.R.T. can even report the temperature for your hard disk. If your disk controller, and its related drivers, allow it, SpeedFan can almost always access and report reliability data from any hard disk manufactured since 1995.
SpeedFan properly accesses the temperature sensor available in the following hard disks:

Manufacturers EXCELSTOR    17 FUJITSU    122 HITACHI    189 HP Compaq    3 IBM    53 MAXTOR    163 MDT    14 SAMSUNG    135 SEAGATE    297 SILICON IMAGE    1 TOSHIBA    67 WESTERN DIGITAL    1026

Hard disks from IBM that include a temperature sensor Manufacturer Model Size Notes IBM IBM-DJNA-351520 15.0GB IBM IBM-DJNA-352030 19.9GB IBM IBM-DJNA-352500 25.0GB IBM IBM-DJNA-370910 8.9GB IBM IBM-DJNA-371350 13.3GB IBM IBM-DJNA-371800 17.8GB IBM IBM-DJNA-372200 22.1GB IBM IBM-DPTA-372050 20.0GB more... IBM IBM-DTLA-305010 10.11GB IBM IBM-DTLA-305020 20.1GB IBM IBM-DTLA-305030 30.0GB IBM IBM-DTLA-305040 40.2GB IBM IBM-DTLA-307015 15.0GB IBM IBM-DTLA-307020 20.1GB IBM IBM-DTLA-307030 30.0GB IBM IBM-DTLA-307045 45.0GB IBM IBM-DTLA-307060 60.1GB IBM IBM-DTLA-307075 75.1GB IBM IC25N010ATDA04-0 9.8GB IBM IC25N015ATDA04-0 14.7GB IBM IC25N020ATCS04-0 19.5GB IBM IC25N020ATCS05-0 20GB IBM IC25N020ATDA04-0 19.5GB IBM IC25N020ATMR04-0 20GB IBM IC25N030ATCS04-0 29.3GB IBM IC25N030ATDA04-0 29.3GB IBM IC25N030ATMR04-0 30.01GB IBM IC25N040ATCS04-0 40GB IBM IC25N040ATCS05-0 39.1GB IBM IC25N040ATMR04-0 40.0GB IBM IC25N060ATMR04-0 60.0GB IBM IC25N080ATMR04-0 80GB IBM IC25T048ATDA05-0 48GB IBM IC25T060ATCS05-0 60GB IBM IC35L010AVER07-0 10GB IBM IC35L020AVER07-0 20.1GB IBM IC35L020AVVA07-0 20GB IBM IC35L020AVVN07-0 20.6GB IBM IC35L030AVER07-0 30.2GB IBM IC35L030AVVN07-0 30.7GB IBM IC35L040AVER07-0 40.2GB IBM IC35L040AVVA07-0 40.2GB IBM IC35L040AVVN07-0 40.2GB IBM IC35L060AVER07-0 60.1GB IBM IC35L060AVV207-0 60.1GB IBM IC35L060AVVA07-0 60.1GB IBM IC35L080AVVA07-0 80.4GB IBM IC35L090AVV207-0 80.4GB IBM IC35L100AVVA07-0 100.5GB IBM IC35L120AVV207-0 120.6GB IBM IC35L120AVV207-1 123.5GB IBM IC35L120AVVA07-0 120.6GB IBM IC35L180AVV207-1 180.0GB There are 53 HARD DISKs listed here.