Okay, it's not that secret. But it is one that my Dad came up with after much tinkering with recipes for breadmakers.
This recipe works with most breadmakers, and makes a 2lb loaf (the 1.5lb recipe follows). It works with any mix of whole wheat and white flour, though in my opinion it's best with slightly more whole wheat than white.
I love breadmakers.
Here's the measurements for a 1.5lb loaf:
(Photo thanks to my wife.)