> If you really want to do justice to Bletchley you need two days. I did the site (three museums, plus the actual Bletchley house) in about six hours. They threw me out when I mentioned B-Deinst, but I was done anyway.
Less than three hours is really not good - you would miss too much, especially the demos. Bill, with your time constraints, go into London and spend the time at the V&A. Completely worth it. -- Will