That's fantastic. The Rom Vault looks like a must have. On the arcade front I intend to run an LCD with VGA and put it through a scan line generator. (I know it's actually making every other line black by grounding it). I have numerous cabinets and various boards such as the Namco Ms-Pac/Galaga reissue but fancy giving the FPGA a shot.
On the harness front I can fix that - we do electronics where I work at a way higher level (BGA's and the like). It is just knowing which boards to buy, configure and leave alone.
Thanks for the reply in the meantime :-}