I am in the process of building the system for my G35. My objectives for the project are to keep it clean and stealthy, and minimally invasive to the car as possible. I have some components left over from a previous
project.
Components:
Intel Mini-ITX dual core Atom 330 w/ 2GB RAM
120GB SATA HDD
USB WiFi
USB Bluetooth
USB GPS
M3-ATX Power Supply
7" Touch Screen LCD (~$100 from E-Bbay,may upgrade to a better one later)
My Ride:
My plan is to put the PC case in the upper glove box where the nav unit would go. The LCD will go in the non-navi cubby in top of the dash. I am going to make a panel to go in the ash tray. This panel will have the power switch, LEDs and USB port. I want to be able to close everything up and hide the system. Here is what I have in mind:
Here is my progress so far:

Where PC case will go (non-nav storage box removed)

Sheet of fiberglass to cut up to fabricate case ,etc.

PC case construction

Playing around with Ubuntu Netbook Remix on LCD