good site that griff, shame it's not free. but i'm sure i'll invest in due course.
i would recommend that ultramon program really good especially for dual screens. i just got a copy and its really useful, you can streatch normal wallapapers over 2 screens, doesn't matter the resolution, it will adjust and compensatre if it's too big for the setup you have, also you can put two seperate wallpapers on two screen.s. look into it.