My system is almost the same as yours, listed below are my compoment.

CPU: 2.4 CG OC 3.0
MB: Asus P4P800 (Bios 1007)
RAM: A-DATA (2-2-3-5)
System FAN: 3X Panaflo

Temperature
CPU: 45 (Idle) 49~53 (Load)
System: 42~47

I also wonder how to get CPU termperature below 35C with 2.4C OC 3.2?