Which Star Wars game should I buy?

[Which Star Wars game should I buy?]

One last question...

Is there one book with all species and careers, or are they spread out through all 3 books, meaning I have to eventually buy all 3 three.

thanks for the help everyone.

[Which Star Wars game should I buy?]

Do I have to buy all 3 sets eventually to play all characters? or is there an online manual I can look at or download? or is the OggDude's enough to just buy one set and later on make my own campaigns?

[Which Star Wars game should I buy?]

I'm a father with 4 children 9-14 and I want to get them into this game. They love Star Wars and have a feeling this could be a Friday night tradition for us. I've done lots of research on these games, but still had a few questions before I purchase.

1. Which game is a good starter game? is there one master rulebook with all classes and species?

2. Do I have to purchase all 3 eventually? Is there something online where I can find out all the speicies/classes so I don't have to buy the other 2 games?

3. What other online resources are there? Homemade campaigns, maps, etc..