Help with a Jedi Guardian

I've been invited to play a Star Wars d20 game. Thinking it was Saga edition, I was quite excited -- but now I understand it's the revised rulebook! All nine of the books for the revised series are open, we're starting at level one, 25 point buy, Dark Side.

I have no idea what to do.

I'm interested in making a Jedi Guardian (refluffed as Sith Marauder), but beyond that... I'm drawing a blank. Please, anyone with any experience with this system, lend me your expertise!

And while I anticipate more than a few folks saying "just go grab Saga, it's better," that's not an option.

Can anyone help me in my quest to understand this strange new world?