Dual Shock 3 is only avalaible for Japan this holiday season. You can import it or try and ask Bernard, Keane or Djinn and see whether they are bringing any in.

And from what I have read before this, currently it's only available as an optional purchase, and not bundled with the 40gb PS3. I could be wrong.

But here is one of the site I found:

www.macnn.com - date of news is 9th Oct, so I am not sure how credible it is.

I quote, "The Dual Shock 3 will only be available as an optional $47 device but will ship on the same November 11th release date as the 40GB PS3 in matching black or white, arriving in time for the release of supporting games like Gran Turismo 5 Prologue."

Even Play-Asia and YesAsia says that they are shipping with the SixAxis

Hope that helps.