One Monk miniatures are some of the most innovative and exciting paper products I have seen for RPG- or wargaming in many years. Flat dungeon tiles and 3D terrain notwithstanding, One Monk figures beat all other 2D figure hands down.
They are in the more popular 28-30mm scale and easily fit with most other plastic/metal figures. The wargaming regiments even include movement trays that are compatible with magnetic basing from Litko Aerosystems (www.litko.com).
I have been making some for Warhammer Fantasy and Hordes of the Things (HOTT) in addition to those for use in my D&D 4E campaign. Once you get used to the process, you can easily print, glue, cutout and edge up to two dozen figures in an hour!
When you add in the fact that you can print as many as you want, One Monk offers free bases on their site, and each PDF includes black and white versions so you can color you rown figures, how could you go wrong!
Excellent products and well worth your time.