Now this is something that's very interesting.

Although you did not test AMD's but I will expect them to be equivalent to P4's. I am glad to know that I am using only 40-51w/hr extra by running dnet. Gosh I used to be scared.

This turns out to what..by the rate of 12cents/KWhr (after conversion to USD), and average usage of 50w/hr...

12 cents for 20 hours..
14.4 cents for a day.
4.32 dollars a month..

wow suddenly thats too much