I've been having the same problem. I've been trying to find the 'perfect' yarn to make the Central Park Hoodie using a wool/cotton blend, but haven't found one yet. I was eye-balling the Rowan wool cotton, but I didn't want to use a DK weight yarn. I looked through yarn.com and through yarndex.com without much luck. :sad:
I plan on making a trip to my LYS pretty soon and will ask them for advice. I'll report back if I find any.