Pentax K-x w/18-55 lens: $636 shipped or $654 with free Pentax Sling bag

Okay, time to re-organize this as it has turned chaotic. We are breaking it down by number of lenses per kit :)

K-x WITH 18-55 DA-L
The Pentax K-x with the 18-55mm DA-L is not only shipping, but we just noticed a small discount! You can get it for $636 with free shipping by OneCall on Amazon. Look for OneCall as the featured seller in the "More Buying Choices" section. As of the time of writing, there are only two units in-stock.

If that one sells out, the next best price financially is at NewEgg.com where you can get the K-x with the 18-55 lens with a free Pentax DSLR Sling bag ($40 price on its own). Shipping is around $4 for 3-day UPS for the camera.

TWO LENS KITS (two different two-lens kits)
Meanwhile the K-x two-lens kit with the 18-55 and 50-200 DA-L lenses is shipping from B&H Photo for $750.

And some pre-order discount news! The starting price for the two-lens kit with the 18-55 and 55-300mm was $850, but right now, you can place a pre-order at Amazon for this kit for $751. [$100 pre-order discount alert!]

BODY ONLY
Obviously the kits bundled with the lenses are the best bang for the buck in terms of finances, but if you absolutely don't want the DA-L lenses, you can get the body-only for $600 from places like Adorama.

All of the above are for the black-body kits. The other colors (Star Wars, Diva Red and Modest Blue) are in pre-order status.