http://www.papajaysjerky.com/
That's where I buy my jerky from. I normally make a run or two up a year to Clifton, ID (about a four hour drive) just to pick some up.
It's good stuff, and aparently, they have free shipping right now, which seems pretty good.
My favorite from there is the peppered. They are pretty big meaty strips, with a good amount of moisture still left in them.