Donovan Waite Sensei conducts an annual seminar in the UK at the St. Ives Aiki Dojo. If you go to the following website you can contact the dojo and inquire with them if they have any DVDs for you to purchase. I know they have DVDs going back to the year 2000. Waite Sensei comes every Sep/Oct and while the DVD for 2005 and this year are still being finished, there are at least four years for you to get your hands on.
George Hemmings Sensei heads the St Ives Dojo.