The email from Anna Wintour said this is the best, most detailed one there is
Harry's Bike Blog
This blog has intimidating-sounded distances, but when I commented on his blog asking about that he said they really didn't go thaat far most of the time. Here's the entry where I commented and received a reply: Interview with Ivana & Harry for Examiner
---> besides his reply to my post the entry has other good general advice