Here are the sites given to me with the strip method and they are good:
http://www.hgtv.com/decorating/tumbl...cks/index.html
http://www.quilterscache.comT/TumblingBlocksBlock.html
I agree with mic-pa that I would do the set-in style as I don't like the idea of a seam on the "top" of the blocks...but that's just me! I'd try a small block of it first.