Ed, I have often used a place called Modern Postcard, they have good
prices, and the service is ok. They have a pretty good system for
ordering from a distance, and will walk you through it. I created
digital art and sent it to them, I recommend that you do the same,
create your own, rather than having them create any text layout or
such for you. They’re not graphic designers, just postcard printers!
I got 500 regular postcards for $95.00, and it took about 2 weeks.
Thye’ll even mail them for you!