Need help choosing a computer

[Shake 'n' Bake]

I'm looking for a Mac notebook, not a MacBook (those are too expensive) preferably an iBook G4 or PowerBook G4. However, I've been reading about Hackintoshes and I'm thinking about going that route.

 

I have a few questions, though:

 

1. Do I need a specific computer, or can I use any computer?

 

2. Will the auto-update work, or do I need something else, and if so, what?

 

3. Would it be cost about the same an iBook?

 

4. How difficult is it?

 

Thanks for your help!