Hooly dooly batman, as it turns out, if all goes well between now and April/May 2008 we will be the proud and bewildered parents of identical monochorionic, diamniotic twins.
Interestingly, according to the repository of all knowledge, identical twins do not occur as a hereditary predisposition (as with fraternal twins), but rather as a random event distributed evenly across all populations. I don't think I will ever look at GUIDs the same way ever again!
I'm such a stunned mullet I can barely type, but needless to say my wife and I are absolutely ecstatic at the thought of having two bundles of joy. I didn't think I could get any happier. Wish us luck, we're gonna need it :)