Still not a peep out of Series 4 yet Paul. Considering nothing's shown up on eBay, it doesn't look like they're gonna be happening anytime soon. Maybe they're gonna hold onto them 'til Ep. 3 hits theaters. I dunno... But from what I've heard, I think there should be at least 6 of the 9 prior Star Tours figures there, if not all of them.
As for other stuff there, I've heard some reports of scattered sitings of the OTC Sandcrawler there for only $40, but that's only at the Disneyworld store. Which one are you going to?
Other than that, they've got all sorts of random SW things, from the regular retail stuff you'd see in stores (marked up quite a bit), to some more unique stuff related to the ride and what not. They've got some new small PVC/vinyl set of figures, from what I recall. Might want to drop Master_Phruby a message here if you're hitting Disneyland, as he stops in there every few weeks (including last weekend), so he might have a better idea than I do.
If you're going to Disneyworld, shoot Sharon a line (Darthshader, above), and she can likely tell you what they've got in stock out there...
Good luck, and have fun!