Thanks for the suggestions Sneaks - here's a wish list, anything would be great:
Abels, R 1983, The Council of Whitby
Wood, I 2008 Monasteries and the Geography of Power, in Northern History
Aird, 2009 Companion to the early Middle Ages
Driscoll and Nieke 1988 "Power and politics in early medieval Britain and Ireland"
???Alcock, L 1981 in Evison VI: Angles, Saxons and Jutes - Essays presented to JNL Myres
Hope Taylor 1977 Yeavering: An Anglo-British Centre...
Scull C 1991 Post Roman phase I at Yeavering
Williams H 1998 in The Re-use of Ancient Monuments, World Archaeology vol. 30
Tinniswood and Harding 1991, Anglo-Saxon occupation... in Durham Archaeological Journal vol 7