There's an on-going timing-of-eating study going on at UPenn [1] that is looking for volunteers. They provide you with 4 months of food (you get a say in what you get) and they tell you when to eat it (though not how much or exactly what). As well as compensation. If you're in the Philladelphia area, it might be interesting to participate or to save money doing this for a good cause. This is the kind of study we need more of and it's hard to get volunteers to give that big a commitment. I don't believe that they're testing fasting, though.

[1] http://www.med.upenn.edu/weight/research.shtml

(I'm unrelated to this, just know someone participating.)