Wow Mike, you did a good job. That diff is made out of some pretty stout stuff so to put a crack in it like that took some doing.
On the "bright" side, at least it's the front diff ($) and not the transfer case ($$$). Good luck getting your girl back together and let us know if we can help in any way.
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless