First of all, why are you taking it apart?
First rule of taking apart a laptop: remove the battery before doing anything!!
Other than that, it's pretty easy, just pay attention to how everything comes apart and goes together. Keep track of all the screws and where each one goes. Don't apply too much pressure when removing parts, the plastic and metal parts of the laptop are often very thin and break easily.
If you do remove the LCD, don't touch the inverter as it can very easily get fried.
As mentioned, be careful with any ribbon cables. If you pull one out, it may look like you broke it, but they usually have a tan plastic clip that holds them in place.