If you are into well-printed and beautifully made books and booklets (like me), you should have a look at SchwarzHandPresse, a swiss publisher. I especially like the "Reihe ohne Namen", which is quite affordable to students as well.
Update: Making some posters as well, digitally printed instead of silkscreen, but with a handmade stamp on each one. Guess that makes me a print nerd, just in case the roughly 400 screenprinted flyers couldn't convince you.