Tom,
Most print the art out at Kinko's or an online service such as EMDKAY. Lay it on the control panel after the holes are drilled and then overlay it with precut and drilled Lexan. Since We haven't come up with a concrete layout for your panel yet (I'm the "experienced" guy he was talking about) We will have to do it a bit different. Since I'm 3 hours away I'll teach you enough to be able to remove the controls and lexan after the fact and install you artwork. Other wise I would have to get you the panel, let you create the art work, and then make a second trip to install the controls and wire them up.
Sorry I hadn't made this clear in our emails.
Printing on Lexan can be done I believe but I'm sure it wouldn't be cheap.