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 FUJITSU that include a temperature sensor Manufacturer Model Size Notes FUJITSU FUJITSU MHN2100AT 10.1GB FUJITSU FUJITSU MHN2150AT 14.7GB FUJITSU FUJITSU MHN2200AT 19.5GB FUJITSU FUJITSU MHN2300AT 29.3GB FUJITSU FUJITSU MHR2020AT 19.5GB FUJITSU FUJITSU MHR2020AT D 20GB FUJITSU FUJITSU MHR2030AT 29.3GB FUJITSU FUJITSU MHR2030AT D 30GB FUJITSU FUJITSU MHR2040AT 39.1GB FUJITSU FUJITSU MHS2020AT 20GB FUJITSU FUJITSU MHS2020AT E 20.0GB FUJITSU FUJITSU MHS2030AT 29.3GB FUJITSU FUJITSU MHS2040AT 39.1GB FUJITSU FUJITSU MHS2040AT D 39.1GB FUJITSU FUJITSU MHS2060AT 58.6GB FUJITSU FUJITSU MHT2020AT 19.5GB FUJITSU FUJITSU MHT2030AR 30.01GB FUJITSU FUJITSU MHT2030AT 39.2GB FUJITSU FUJITSU MHT2040AH 39.1GB FUJITSU FUJITSU MHT2040AH PL 40GB FUJITSU FUJITSU MHT2040AT 39.1GB FUJITSU FUJITSU MHT2040AT SP 40GB FUJITSU FUJITSU MHT2040AT PL 39.1GB FUJITSU FUJITSU MHT2040BH 40GB FUJITSU FUJITSU MHT2060AH 58.6GB FUJITSU FUJITSU MHT2060AH PL 60GB FUJITSU FUJITSU MHT2060AS 60.01GB FUJITSU FUJITSU MHT2060AT 58.6GB FUJITSU FUJITSU MHT2060AT SP 60.01GB FUJITSU FUJITSU MHT2060AT PL 58.6GB FUJITSU FUJITSU MHT2060BH 60GB FUJITSU FUJITSU MHT2080AH 80GB FUJITSU FUJITSU MHT2080AH PL 80GB FUJITSU FUJITSU MHT2080AT 78.2GB FUJITSU FUJITSU MHT2080AT PL 80.0GB FUJITSU FUJITSU MHT2080BH 80GB FUJITSU FUJITSU MHU2100AT 100.0GB FUJITSU FUJITSU MHV2040AH 40GB FUJITSU FUJITSU MHV2040AT 40GB FUJITSU FUJITSU MHV2040BH 40GB FUJITSU FUJITSU MHV2040BH PL 40GB FUJITSU FUJITSU MHV2060AH 60GB FUJITSU FUJITSU MHV2060AH PL 60GB FUJITSU FUJITSU MHV2060AT 60GB FUJITSU FUJITSU MHV2060AT PL 60.01GB FUJITSU FUJITSU MHV2060BH 60GB FUJITSU FUJITSU MHV2060BH PL 60GB FUJITSU FUJITSU MHV2060BHPL 60GB FUJITSU FUJITSU MHV2080AH 80GB FUJITSU FUJITSU MHV2080AH PL 80GB FUJITSU FUJITSU MHV2080AT 80GB FUJITSU FUJITSU MHV2080AT PL 80GB FUJITSU FUJITSU MHV2080BH 80.02GB FUJITSU FUJITSU MHV2080BH PL 80GB FUJITSU FUJITSU MHV2080BHPL 80GB FUJITSU FUJITSU MHV2100AH 100GB FUJITSU FUJITSU MHV2100AH PL 100GB FUJITSU FUJITSU MHV2100AT 100GB FUJITSU FUJITSU MHV2100AT PL 100GB FUJITSU FUJITSU MHV2100BH 100.03GB FUJITSU FUJITSU MHV2100BH PL 100GB FUJITSU FUJITSU MHV2120AH PL 120GB FUJITSU FUJITSU MHV2120AT 120.03GB FUJITSU FUJITSU MHV2120AT PL 120GB FUJITSU FUJITSU MHV2120BH 120GB FUJITSU FUJITSU MHV2120BH PL 120GB FUJITSU FUJITSU MHV2120BHPL 120GB FUJITSU FUJITSU MHV2160BT 160.04GB FUJITSU FUJITSU MHV2160BT PL 160GB FUJITSU FUJITSU MHV2200BT 200GB FUJITSU FUJITSU MHV2200BT PL 200GB FUJITSU FUJITSU MHW2040AT 40GB FUJITSU FUJITSU MHW2040BH 40GB FUJITSU FUJITSU MHW2060AT 60GB FUJITSU FUJITSU MHW2060BH 60GB FUJITSU FUJITSU MHW2080AT 80GB FUJITSU FUJITSU MHW2080BH 80GB FUJITSU FUJITSU MHW2080BJ FFS G2 80GB FUJITSU FUJITSU MHW2080BJ G2 80GB FUJITSU FUJITSU MHW2100BH 100GB FUJITSU FUJITSU MHW2120BH 120GB FUJITSU FUJITSU MHW2120BJ FFS G2 120GB FUJITSU FUJITSU MHW2120BJ G2 120GB FUJITSU FUJITSU MHW2160BH 160GB FUJITSU FUJITSU MHW2160BH PL 160GB FUJITSU FUJITSU MHW2160BHPL 160GB FUJITSU FUJITSU MHW2160BJ FFS G2 160GB FUJITSU FUJITSU MHW2160BJ G2 160GB FUJITSU FUJITSU MHX2250BT 250GB FUJITSU FUJITSU MHX2300BT 300GB FUJITSU FUJITSU MHY2080BH 80GB FUJITSU FUJITSU MHY2120BH 120GB FUJITSU FUJITSU MHY2160BH 160GB FUJITSU FUJITSU MHY2200BH 200GB FUJITSU FUJITSU MHZ2080BH G2 80GB FUJITSU FUJITSU MHZ2120BH G2 120GB FUJITSU FUJITSU MHZ2160BH 160GB FUJITSU FUJITSU MHZ2160BH G1 160GB FUJITSU FUJITSU MHZ2160BH G2 160GB FUJITSU FUJITSU MHZ2160BJ FFS G2 160GB FUJITSU FUJITSU MHZ2250BH G1 250GB FUJITSU FUJITSU MHZ2320BH G1 320GB FUJITSU FUJITSU MHZ2320BH G2 320GB FUJITSU FUJITSU MPF3102AH 10.0GB FUJITSU FUJITSU MPF3204AH 20.0GB FUJITSU FUJITSU MPG3102AH 10GB FUJITSU FUJITSU MPG3102AH E 10.24GB FUJITSU FUJITSU MPG3102AT E 10.0GB FUJITSU FUJITSU MPG3204AH 20.0GB FUJITSU FUJITSU MPG3204AH EF 20GB FUJITSU FUJITSU MPG3204AH E 20.0GB FUJITSU FUJITSU MPG3204AT 20.0GB FUJITSU FUJITSU MPG3204AT E 20.0GB FUJITSU FUJITSU MPG3307AH E 30.0GB FUJITSU FUJITSU MPG3307AT 30.0GB FUJITSU FUJITSU MPG3307AV 30.0GB FUJITSU FUJITSU MPG3409AH 40.0GB FUJITSU FUJITSU MPG3409AH E 40.0GB FUJITSU FUJITSU MPG3409AH EF 40.0GB FUJITSU FUJITSU MPG3409AT 40.0GB FUJITSU FUJITSU MPG3409AT E 40.0GB FUJITSU FUJITSU MPG3409AV E 40.99GB There are 122 HARD DISKs listed here.