Barada2, it is May 3-5, 2002 in Indianapolis.
(just for reference, most Episode 2 toys will be released in your own town by April 22 (almost 2 weeks before the convention).
Go to www.starwars.com or the Fan Club store in their shopping section for more details. There are also at least a handful of fan-made sites that have popped up to hype the convention.
The exclusive figure will probably be like the theater-edition Luke Jedi (an older figure with special commemorative packaging). It is ANH's 25th Anniversary, so you can guess it will also be from ANH and an important character (read resculpt if it even IS a new mold). I still have my theater Luke specially protected on his card from the premier of Return of the Jedi: the Special Edition. It brings back good memories for me. Maybe I'll start a special figure collection. This one will only be the second. But I do dioramas so I prefer things that I can open and use...
I don't recall the admission fees but I think it's like 25 dollars a day, or 70 bucks for the whole 3 day thing. The official site will have that information. Sorry I didn't have time to check it at the present, and no, I haven't ordered my tickets yet.