Fan is running fast and HD is hot

Hey guys, my imac is 3 years old now and its fan has been running really fast today. I've shut it down, reset the PRAM, I've reset the SMC as well. It takes it about an hour to speed up. iStat is showing me that the fan speed is running at 3600 rpm and the Hard Drive is running at 124 degrees F. Kinda scary. I've got about 2 months left on my applecare. Any ideas?

Hi iKev7
First have a look at both the HD and HD bay temp's with the iStat Pro widget to see how they compare.
http://www.apple.com/downloads/dashboard/status/istatpro.html
Second did you follow the correct SMC reset: > http://support.apple.com/kb/HT1543
most importantly step # 4. +Plug the power cord back in, making sure the power button is not being pressed at the time. Then reconnect your keyboard and mouse to the computer.+
Dennis

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