Good find Vario, ill do some research on that case. Ill try looking around for a GFX company that could do that as well. Any ideas of where to start looking?
Hopefully that paint is close, its more of an orange than a gold, maybe go with a decal as suggested above, a black case might be better to apply a decal on, as visually it will have less color conflict with the decal.
For local companies, try looking into custom car vinyl decal companies
edit: For internet companies, theres a few custom decal companies that appear in google search, never dealt with them so I don't know what to recommend, some offer laptop skins etc which would be similar.
example:
http://www.decalgirl.com/custom/skins/custom-laptop-skins?gclid=CIGe1MuQpb0CFRQaOgodWTAAjQ
http://www.schtickers.com/laptop-skins-custom
https://www.websticker.com/custom-stickers.php?ver=var1&gclid=CM32k4WRpb0CFcx9OgodfHAA9w
http://www.buildasign.com/custom-decals
etc
edit2:
if you want to go the painting route, you can often have items locally powdercoated or painted. You would have to disassemble the case entirely which involves drilling out rivets with a small drill bit, taking it to the painter, and then after it is finished, reassembling it with a poprivet gun, the other more DIY alternative is sanding the surface, applying a spray metal self-etch primer and then several coats of spray paint. I'd recommend having a company paint it for you, it will look a lot better. You would still have to take it apart so its still a lot of work. If you paint it yourself you can just mask the inside off and paint the outside, but it might end up looking shoddy and it may cost the same after you factor in the materials (spray cans, sand paper), I'd say $60 to paint it yourself and maybe $100 to have a shop paint it. If you paint it yourself you could get away with not de-rivetting the case by remove the side panels and paint them separate, mask off the interior, front, and rear, then paint the roof. Lastly remove the front bezel (often plastic) and paint that separate. I don't recommend sanding plastic, it never ends up well.