-Script: I'd definitely be up for helping out, and in fact was going to suggest doing seeing how much MTH has been doing (and how little I've been contributing lateley

-Sebulba's Introduction: "I hate Gungans" may be the best option, but we'll have to take a look at the footage and what we have to work with. I've always thought the group tagging along with Anakin to buy fruit was odd, but maybe offscreen he offered to buy them some, as he gives them to Qui-Gon. Making Anakin intuitively sense Qui-Gon is a Jedi would be a nice touch, but doing so would lose some of the best dialogue in the movie. "Perhaps I killed a Jedi and took it from him./I don't think so. No one can kill a Jedi./I wish that were so." So I'd say leave the fruit stand/lightsaber reveal in.
-Pod Race: I think MagnoliaFan did an excellent job with this, and we should definitely use his as a blueprint. Editing out Jabba, the announcers, the majority of the introductions, and utilizing some of the extended scenes from the DVD was all great. The Shadows of the Empire music was perfect as well.
-Threepio: I don't know how much we can alter his dialouge, but Anthony Daniels has done so much Star Wars material over the years there's certainly a multitude of sources to draw from.