A new book on the geometry of Stonehenge and the author seems to have simplified the setting out of the stones, Aubrey Holes etc using techniques available at the time.
Experimental archaeology was used at a site in Oxfordshire to check out the feasibility of the theories.
It seems to be a well researched and sober account.
timesonline.co.uk/tol/life_and_style/court_and_social/article4003818.ece
Jim.
P.S. I have to declare an interest. A picture I took at the Winter Solstice appears on the front cover and on page 258.