Good luck! As I've been trying to lose a total of 20 lbs over several months, this calorie counting business has been a real eye-opener; I'm still trying to figure out what is a good deficit for actual weight loss for me. 500/day may indeed be a magic number: there have been weeks were I had too much of a deficit, and lo and behold, I plateau'ed, if not gained a few back.

One question I have for the CalorieKing users... have you compared it much to FitDay (I use that one)? I'm curious to know if it seems more accurate with foods or activity calorie counts, if it is easier or more fun to use, or ...?