All of the header images (the big wide ones at the top of each page) that I am using for this site are photos that I have taken. The different pictures appear randomly whenever you goto a different page or refresh the current one. The originals are all on my Flickr photostream along with descriptions. Alternatively, just keep looking at different pages here and you’ll see the pictures in context.
I took all of the photos myself. Locations range from Australia, Japan, New Zealand and New England through to Sheffield, Derbyshire, and a couple of UK coastal regions.