Ordered a Lite-On slim slot load USB dvd-rw drive, D-Link wireless g usb network card, a battery powered 4 port USB hub, and some other miscellaneous parts for the carpc setup.
Still getting a CMOS checksum error after starting the car up for the first time after sitting without power for an extended length of time. I will try replacing the battery and see if thats the problem. Gotta pick up a battery on my way home from work tomorrow.
End of 10-01-06 Update.