Is baji a shaolin art, or does it come from another source?

It's considered a Daoist art.

What are its primary means of attack? Striking, throwing, chin na, etc?

This dude: http://members.tripod.com/~crane69/ has some information on Baji.

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And that's what I call REAL Ultimate Power!!!!!!!!!!!!!!!!!!

Sorry didn't see this earlier.

As said it is NOT a Shaolin art

Baji is a close quarter art. The main means of attak are, fist, eblows, knee, low kicks, shoulder rams, using the back as well.

You spend alot of time learning to generat a lot of power and send it inot your opponent. Many of the techniques are visious and are focused on putting the guy on his ass as quick as possible.

Xiao Ao Jiang Hu Zhi Dong Fang Bu Bai (Laughing Proud Warrior Invinsible Asia) Emporer of Baji!!! THE FIRST LINE OF DEFENSE AGAINST THE UNITED AUSSIE FRONT!!