So I have pretty much wrapped it up. I've worked out all the kinks I've run into so far and will continue to post updates as I run into more. Here are a few of my finished product pics! Enjoy!
The final interior layout before I buttoned it up. I ended up re-installing Raspbmc to a usb drive to be left inside the 64 that I forgot to snap a pic of before it went in, though it still needs the sd card in the cartridge to boot.
A better pic of the HDMI hookup
External ethernet jack: the pi has a wireless N 150 card installed inside, but the re-installs are so much easier from the wired connection.
A view of the undercarriage
From the top: you can see the a/v ports through the memory expansion port
Front view without cartridge:
I also recorded a short video showing the boot and shutdown here: please excuse the pony, she's a good luck charm :)
Thats all for now! Hope you like it!