This is the wooden planks material which I mentioned in comments to my procedural wood material.
I wanted not only the colors of the planks be different but the coordinates too.
This planks material has 4 variations in color and coordinates of my wood material. One could go as far as 10 or 100 variations but I wanted to keep it as simple as it can be :).
File includes plane and flattened unsubsurfdivided cube (:P), each one with a little bit different settings.
Edited: Sorry to all who downloaded the file already. For me it was crucial to do some minor tweaking around bump setup because apparently I didn't do it properly. Now i tested it with setting near extremes and it seems to be ok.
P.S. Also edited wood material (to match settings with wood node setup of planks).