We love Statdx at my program. It's set up very similar to the format of the Amirsys Diagnostic Imaging series books (that are freakin expensive). It offers very quick, outline style information on practically any diagnosis you can think of. Great differentials, too (this helps just before signing out with that attending who loves to pimp). I also think this comes in very handy on call, though haven't quite had that joyous experience yet. Even the attendings who haven't seen Statdx think it's neat. Neato, in fact! 😎