Back in 2004 I set out to find out if I could build a screen into the side of my case using a laptop monitor...that didn't work out, but I found a different solution: I bought a Samsung SmartPanel (usually used in kiosks) off Ebay and built it into the side of the case.
The SmartPanel has the OSD PCB as well as VGA connection (unlike a laptop panel). It was simply a matter of cutting out the side, bolting in the screen and then spiffing it up a bit with some plexiglass I cut on my table saw.
When finished, I posted images of the final result to the thread I had been following on laptop screens being used for desktops. You can see it at:
http://www.techwarelabs.com/community/viewtopic.php?t=1313&postdays=0&postorder=asc&start=180
If it prompts for a password, just hit Cancel. My post is down at the bottom of the page. I'd post some pics, but I guess I haven't posted enough in this forum.
Once I had cut out the case, I took a picture and sized it to 1024x768 (the native resolution of the SmartPanel). One of the pictures shows that image as the desktop to look like a window in the case...
It's great to take to gaming parties (notice the handle)...