I have written a blog about building my own arcade system from "scratch"...
I hope it is alright if I shar it with you guys, cause it certainly helped me having posts like that while building my own.

http://tellaedhel.wordpress.com/2011/08/07/ultimate-arcade-macheen-intro/

It starts from an intro page and goes on to the final stage... enjoy it and good luck in BYOAC!

I just have some minor make-up stuff to do and it should be flying... any suggestions are welcome.