I saw it mentioned on techbargains.com.
I went to the BB site, added a bundle to my cart, then deleted everything else from the bundle.
I received a confirmation email from Best Buy last night congratulating me on my XBox purchase, confirming that it was a pre-order, and stating that I would...
Site update:
"Sorry! We've sold out of our first shipment of Xbox. But have no fear — more are on the way. Please drop by your local Best Buy retail store for further information. "
Score!
...and so do all of the regular bundles.
http://www.bestbuy.com/videogames/sp.../xbox_shop.asp
And the bundles allow you to delete items to get down to the bare xbox.
Sure, it's really a pre-order and it's not shipping in 3 days, but they aren't going to cancel these orders.