Audio/Video:

The Raspberry Pi has both HDMI and composite (RCA) A/V output. For this build, we're only going to use composite since the LCD is composite. I bought a 3.5mm A/V cable but it was way too long (6') so I cut it so there's less clutter inside the LapBerry Pi plus I get quite a bit of extra wire to stash for later projects! :D

The Raspi 3.5mm jack has a different pinout than most devices. Usually yellow=video, white=audio left channel and red=audio right channel however, on the Pi, yellow and red are backwards so the red lead is video and the yellow lead is the audio right channel. I used a spare 3.5mm stereo jack for the audio and a spare female RCA plug for the video. The LCD has 2 video channels so I could have used 2 RCA plugs, one for video input and one for video output but instead I Used one RCA plug for both video in and out which means the LapBerry Pi can dual output video on the screen and on a separate composite screen (TV, LCD, whatever has comp input) or you could plug your favorite video game system into the LapBerry's screen!

Again for this part, I suggest tracing the plug on your case before making any modifications so you dont end up accidentally making a hole too big for the ports. I used my X-acto to make the holes, just twisting it in a circle and it worked perfectly. after connecting the jacks to the 3.5mm A/V cable I super glued the jacks in place.

I'm hoping in the future to get an HDMI to VGA+RCA adapter so it can output to VGA or composite without having to open up the LapBerry to switch video modes.

Buttons & switches:

Originally I was planing on only using a single switch but that would mean the screen would constantly be powered whenever the Pi was turned on so I added a push button from an old computer tower for the screen's power. I was able to easily cut the holes with an X-Acto knife and just use some computer screws to mount them. I used the SPDT switch for the Raspi's power and the push button for the Screen's power.

LED:

I used a regular old 5mm blue LED for a power indicator, plugged into the 3.3v GPIO on the Raspi (I was too scared to solder to the actual power or activity lights on the Raspi).