Jeff, there's a London-based hypnotist named
Paul McKenna (hugely successful these days) who has a weight-loss program that I'm interested in.
On his diet (which has nothing to do with hypnotism, BTW), you can eat whatever you want, and whatever quantity you need to attain satisfaction.
But you eat very slowly, and take care to put your utensil down between bites.
And you
only eat when you're hungry.
The point is to eat with great mindfulness so that you are fully aware of the sensual experience of eating.
It's said that this kind of eating breaks down the sheer gluttonous impulse to gorge.
Finally, you're eating only the amount your body really needs ... and the emotional reasons for eating are held in check.
(That might mislead; I believe that eating slowly as you do under his instructions, you actually get many emotional satisfactions ... and might really enjoy, say, two chocolates instead of the half box that many of us can cram down before realizing what we're doing.)
I know people who have followed his program and steadily lost substantial amounts of weight and kept it off better than they have done on other regimens.
You might like to click that link and mozy around the site a bit.