It seems that whenever I go to my local bookstores nowadays, a new Sudoku book/magazine is out. Two recent acquisitions are:
Su-doku On Holiday
This book contains 149 graded puzzles from "easy to fiendish". Broken down, there are:
7 8x8 grids
15 10x10 grids
6 12x12 grids
8 15x15 grids
6 Jigsaw grids
3 cubes
the rest being standard grids.
The Big Sudoku Puzzle Magazine is more like a fold out. There are a few standard grids and a poster-sized Samurai consisting of 21 grids.