Fancy Taking a Crack at 1940s (albeit classified) Technology?

Turing is the one standing on the bus's steps.

Conservatively, the code breakers, Alan Turing a terribly tragic example, at Bletchley Park shortened the war by over a year. (Winston Churchill, who would know about these things, certainly thought so.) Fancy, however, using your 2.66 GHZ Quad Core screaming Meany to take on the Bombe a computer that employed over a thousand vacuum tubes (valves in UK parlance?

More info here.

and here.

If I can recommend a book or two on the subject, Sebag-Montefiore's Enigma (2002) is great for the overview, while Andrew Hodge's biography of Allen Turing, Alan Turing: A Biography (1992) is about as tragic a biography as they come.