Anybody interested in some good summaries of the research, there are 2 pieces of work I consider outstanding:

Dr. Robert Lustig, a leading edge pediatric endocrinologist with results of his and other studies: The Bitter Truth lecture

And Gary Taubes' book "Good Calories, Bad Calories" which is an exhaustive but engrossing book on what is and is not known about fat and fighting it, and no, it's not as simple as calories in, fat out.