Fantastic!
Ok, fair enough. And are you taking the photos, or will they be supplied to you from other people?
No need to change a good thing Ok, you'll need to talk to them and get their artwork specifications. Most places can send you a PDF. It will tell you about PPI, CMYK, etc, etc.
So contact them (or just browse their website, it might be there) and let me know what you find out.