You're joking right? For a CPU that's actively cooled, yes, I'd say that's pretty normal. For an HDD that has passive cooling, not to mention moving parts and a very sensitive head that floats micrometers from a plate that's spinning at anything between 5400 and 7200 RPM... no, I wouldn't call that a normal temp. You do realize that that head can expand and contract with temp variations... the risk of a head crash increases if temp variations are not kept as low as possible. Not to mention the control circuits might fry with anything above 50C.