Interesting info in this thread.
I ordered a 27 BTO about 26 hours ago (along with some other items at the same time). I've had an authorisation request for the funds approved, but nothing taken from my account. I'm being quoted a delivery date of 30th September to 2nd October too (UK delivery with UPS).
My other items (Ext Harddrive, Applecare & Parallels 9 shipped today for delivery tomorrow).