WOW 6 pages of replies! I had no idea ^_^ thanks guys. Here's my update:
On Wednesday I called my local AT&T store. They don't offer "NEXT" for iPad but they did have installment plan. I pre-ordered the 128GB / Space Grey / LTE model and with financing it comes to $54.00 a month which is exactly why I wanted to through AT&T and not pay full retail up front at the Apple Store. They did sneak in a $10 a month insurance plan but assured me I can cancel it when it comes in.
That being said, they were as shocked as I was that Apple gave them little to no information and they said I was the first person in their store to mention the iPad Pro let alone pre-order it. They also had no idea if they were even selling Pencils or Keyboards but seemed to think they would "by Christmas anyhow". The sales guy also stated what others here have said that AT&T tends to overplay their delays in shipping new products, so I hope this is the case as I really wanted one at launch (though the fact that even Apple has no Pencils in stock worries me a bit). I know that realistically we can all wait another few weeks or a month or whatever, but I don't really get why that's the case if we ordered them before they came out.
Anyhow, I'm going to read the other 5 pages of responses and see what you guys posted. Thanks again!