Intel Pentium D (dual core):
Intel Pentium D 820 (2.8Ghz) (63°C)
Intel Pentium D 830 & 840 (3.0 - 3.2Ghz) (69.8°C)
thats what the max cpu temp guide sayshttp://www.computerforums.org/showthread.php?t=44851&highlight=temperatures
Are you using stock cooling cos that is quite high for idle , do you know what it is under load .I would get some case fans and a new heatsink
AS for the other temps they all look fine to me