Jack, welcome ! some good thoughts by some of the forum members. It entirely depends what you want. do you want to follow the American route of combat or the British. hard to take in both I beleive but you can try. Would think that startings south of Caen and visiting points slightly South-west and west and finalize at Falaize and the area of Trun would rap things up quite nicely for you. As Sommercourt has a nice site as well as Mahross as well to fill you in.
maybe go here for a tidbit....
www.hill112.com
a tribute to the British armor and a vets story.
~E