Warning: Make sure the screen is open and completely vertical - or laid all the way back. This will help prevent the laptop from falling backwards after removing the components.

Open the laptop bay by pulling back fully on the latches on both sides of the laptop until the front of the keyboard pops open.

Remove the battery by pulling up on the blue tab, lifting the end closest to the back up and out.

Remove the Hard Disk and Floppy Disk Drive by pulling the blue tabs towards you until the metal handle is dislodged, then use the handle to lift straight up, disconnecting them from the connectors below.

Be careful where you're bracing or applying leverage. The plastics on the case are often brittle and can easily be broken if pressure is applied.