KirjE and Rok87: thanks kindly for your advice. I will certainly book as close as I can to take account of the traffic, the thought hadn't really crossed my mind until you chaps mentioned it; the De Vere New Place sounds ideal as it's away from the busy areas and cheap (looks suitably plush too)!
I wish you chaps going on the 11th the best of luck, and if there's anyone going on the 12th (as I am) please feel free to drop me a pm.