Meanwhile, our semi-monthly D&D campaign will switch to Pathfinder (a variant of D&D3.5) -- more specifically, the Jade Regent 'Adventure Track'. The Player's Guide of that just came out, and I downloaded it and fiddled (a lot!) to make it into a booklet.
I used a cahier-binding (because it's 28 pages, so only 7 sheets of paper), with very thick cardstock from De Middelste Molen, a traditional papermill. The stock looks like it's a bit marbled, which I like a lot.
(I still haven't read the Player's Guide yet, but hey -- at least it's in an attractive booklet!)