The Kyngdoms is a wonderfully detailed campaign setting for the 3.5 D20 system by Keith Robinson. The vast ammounts of detailed locations available require good quality maps.
The Kyngdoms Full Map is a HUGE pdf that provides the complete map to the world of Arrasia in a single file.
Printing this huge map in a plotter is possible --I did that myself, although they still had to shrink the map a little bit, even using the largest plotter in the local poster shop. However, I have found that the best use of this product is to print a select region for your current adventure.
All in all, I found this a better value than the Kyngdoms Atlas, but of course, some people will like the Atlas format better.