I have the Coral Draw suite, which is rather pricey, but I've heard of people using the shareware version of Paintshop Pro.
I'll do the fine work in Coral, then just port it into the testers program for printing.
I do that because scaling to the size I want is easier in Testors , which adds a measured ruler the the curser when you grab an object and resize it.
In' Coral you can set it to the size you need, but finding the menu, doing the math from inches to pixels or visa versa, or even chasing down the option to convert to inches or metric is more trouble than just pulling into testors and grabbing a corner.
Id look around for a free graphics program to use..
one that allows you to work in layers is the nicest.