I've had Jedi Academy for years. I've played it for years. It's an awesome game. It generally recieves at least 2 play-throughs, one light, one dark (though, occasionally, a couple balanced ones) of the single player campaign. For anti-social people like me, it has bots to allow a single-player FPS arena experience.
Jedi Academy is a great game, with a degree of customization (model, force powers), but, more importantly, lightsabers. The lightsaber gameplay feels just right, save for a lack of major motion sensing, which limits the player to only a few default melee attacks and a couple of combination attacks. The game plays like a TPS with the lightsaber, and FPS with any other weapon (though you can go into third person). All in all, the weapons range from conventional to exotic, and provide a nice play experience.
Gimme your opinions, if you've played it. If not, buy it or find it on a download service (NOT PIRACY, like GameTap or Steam). There is a free demo.