I'm in Oregon also, in Portland. I've been using the Red Star yeast, which is $1. So far, it seems to be working just fine. Although, I've yet to taste my cider. Still fermenting. I've tried two different kinds of Red Star. I definitely want to try some ale yeast next, like nottingham or something. I know that's going to cost a bit more...
Also, for organic apple juice - retail, I've found it at Costco for only 5.59 a gallon, which is great! I hope to find it cheaper in the fall when I'll try to buy it directly from some local organic orchards.