Ok, so I have bought the book (excellent I must say), dived in, bought most of the parts and the cabinet has just had a second coat of paint. It is based on the Koenigs Project Mame cabinet but I liked the Taitorama CP so modified the DWG to suit and have had a stainless one made up. I plan to post the complete project up shortly in the announcements forum.
But to the matter in hand - ARTWORK!
So I have knocked around a few ideas and ended up deciding on a bespoke Star Wars theme. I have gone through the forums / internet , seen some nice work by Mikonos and other internet pictures as inspiration. My thoughts are to have a good / evil spilt on each side of the cabinet , not sure about the kick plate and bezel yet and a simple CP, I do favour less clutter.
So I have played around tonight and knocked up the picture below. First and foremost I wanted to check I had the correct size so did a test print on A3 and all the holes line up

Was playing with the idea of getting several different X-Wings / Tie Fighters on it, so placed one to see how it looked against the background.
Being a newbie to this and Photoshop I am on a steep learning curve so constructive criticism ideas always greatly welcomed.
Should I have the image size at the same size as the CP or allow a little larger?
Is 200 DPI good enough quality?
Look forward to your thoughts.