Well, it's coming down to the wire, but I'm 99% certain that the hard drive is dead. My brother places the PS3 to the left of the cable box (major heat source, and the vent of the PS3 is on the right) and insists it's well-ventilated. When I placed the PS3 elsewhere, he yelled.
It's funny, I get the reverse Seitengrate, and by that I lose 500 hours of Star Ocean 4 like that.