Here is the pricing structure
It's very simple and straight forward. Images are all one of 3 prices and are Royalty Free (subject to our Licence)

Medium Resolution       $10.00 US - approx 1.5mb (800 x 600 )
High Resolution            $30.00 US - approx 5mb (1600 x 1100)
Ultra High Resolution    $50.00 US - at least 50mb (5400 x 3800 pixels )