I know what you're saying but David does address issues with cholesterol in the book - I must admit I can't fully rememeber what it said as I don't have a cholesterol issue so didn't pay full attention.
I, personally, believe in eating whole foods though, as close to nature as possible and as untouched by processes (I buy not only full fat milk but un-homogenised). I have no problem with eating full fat but do have a problem with the concept of McDonalds and pizza being encouraged.
If skim and low-fat work for you then stick to it, so long as sugar is not a substitute for the fat they have removed. You could always water down full fat milk to the consitency of skim milk and have the same outcome as what you buy from the shop now, but cheaper as you won't need as much! ;-)
Again - I don't think I have helped at all.... LOL