These looks interesting, from Design Within Reach: the Bouquet of Notebooks series, reasonably priced at $20 for the set and available February 26, 2010.
Bouquet of Notebooks (Set of 7)
From the company that makes the paper for the Euro note comes this bouquet of seven compact notebooks. Each pocket-sized notebook has a different color and different type of paper – from vellum to graph paper – to suit all types of creative impulses. Designed to be enjoyed by everyone from the consummate doodler to the serious paper geek, it’s a compelling and brightly colored assortment.
Update: I came, I saw, I ordered.