Question about routine maintenence

I don't know much about cars and how to take care of them that much so I had a few questions.

I have had my 2000 firebird for 6 years (bought it new), what stuff do I need to change? I change the oil all the time, I'm not that much of a newbie lol.

Second question, someone had mentioned a book on here a while back that shows you everything about the car like how to take off the dash and stuff.

I appreciate all responses.

The books you should probably have are the Hayne's manual, and /or the Chilton's manual. I have both for my 89, and they both come in handy. Where one lacks in pictures or details, the other will make up for.
I know the Haynes is available at Autozone, or you can probably get both at the book store. As far as routine maintanance, these books will tell you what should need attention. Then of course, there's always the owner's manual. :)

I bought a haynes for my '95, its good, but sometimes its not very clear about whats being done in the pictures, the rest is great though and it comes in handy a lot..