Here’s a site I found from teh good folks over at astronomyforum.net. Crazy nice charts, all optimized for printing at a4 size (or US letter if you’re into that).
http://www.uv.es/jrtorres/triatlas.html
There are 3 sets: A, B, C. Each with a deeper level of detail and zoom, and showing objects of lesser magnitude. I’ll be using the A set for an upcoming week in Šumava. :)
Good stuff.