Many thanks 'Purplestuff! That's much better!
I have had a crack at the logo, changed the font for the text and tried to improve it a little.

PSD of above image
http://hotfile.com/dl/121831101/671ec9c/treasure_instruction_card.rar.htmlAged version

Best so far

Old coin box door will become an admin panel, complete with lock (volume, gamelist management buttons etc)
volume dial sits there alone at the moment

This open area at the top next to the monitor will house a mouse, keyboard and remote control for the TV

Other side houses the PC

Speakers, air intake, harddrive mounted to the floor, chassis mounted to the wall

Power supply mounted to the inspection door

Innards

PC:
Athlon XP 3200+
768mb Ram
160gb HDD
Radeon 9800 pro agp
2.1 Subwoofer
Software:
XP 64
Maximus Arcade
Groovymame 64bit
Monitor:
Panasonic 14" tv running at 15khz, driven by groovymame @ correct refresh speeds
Got a few things on order
8gb SSD
IEC switched socket
Experimenting with various control panel options at the moment
Shot blasting and powder coating metal work
Spray painting bottom half of cab (black area) as well as the indsides of the cab
and about a million and one other little jobs!