Ages ago I was playing with a thing that converted various base systems like hexadecimal and binary into regular decimal. I was struck by the idea that if you went the other way and converted base 10 (decimal) into base 36 you'd have a thing that would convert a long stream of numbers into a long stream of numbers and the 26 letters of the alphabet.

Now insert a suitably infinite number like Pi into that system, and you have your infinite number of cyber monkies typing away into forever. So in theory some where in amongst all that you would find the complete works of Shakespeare, but then I suppose you'd also have the complete works of Jeffrey Archer in there too.