A few weeks ago I went to a place called the "Wool Factory" which was having a huge sale. I bought 2 huge spools (approx. 900 gr) of a pretty blue in a wool/merino/silk mix - it's almost the same shade of blue as in the thermal pattern. I swatched it and hit gauge spot on...so obviously it was meant to be.
I still have to get my hands on a circular needle with a long enough cord, though. If I find one at my LYS today I'll cast on this weekend and get the thermal started. I might need a head start, I've only been knitting for six months and I don't knit all that fast. Also, the yarn I'll be using splits very easily, so I have to pay close attention to my stitches.
Oh, and based on the time the swatch took to knit up, the size of the needles and the number of stitches per row....this is going to be a huge project! But I don't mind, I need a big project to work on. I also love the look & feel of the pattern in the swatch.