Yarn: I used Paton's Merino Wool. The largest women's size took less than 2 skeins of the cuff / sole color, and less than 1 of the upper color. You hold the yarn double for the entire slipper. I used kool-ade dyed fisherman's wool (done like this link) for the bright reddish/blue pair. They didn't felt quite as quickly as the Paton's.
Needles: Bamboo size 13 circulars.
Pattern: The fiber trends clog pattern. I think you have to get it at local yarn shops?
Started: Sometime in October 2007.
Completed: November 25, 2007. They've been knitted for a while, I just had to get to the felting part.
Notes: Another great pattern. They knit up pretty quickly. I liked it!