My CPU idles as 30 deg with a stock cooler, and at 45 deg on 60% load.
Is your CPU fan set to adjust speed as it gets hotter or does it run full speed all the time. my is set to be running full speed all the time.
if you case has good air flow, it will reduce your temp as well.
If its cool then its probably a good thing.
i cannot see the picture you posted due to my work banning imageshack.