I just got back from my local Target (Denver area) and they had BOTH of the Assault on Death Star (w/ x-wing) AND the Jaba sets. They were both "in the back" (not yet on the floor)...but they were more than happy to retrieve them for me.

ToysRUs had the Naboo and Hoth sets available online on Friday (Nov. 23rd)...so I ordered those too...currently being shipped to me. The site now says they are not longer available online 

All my son needs now is the Millennium Falcon.