These keys usually are around $45 at the dealer.  Some dealers will program the keys for free if you buy the key from them, but some dealers charge as much as $100 to program a key!  It all depends on your local dealer.  Since it looks like you are in Alaska, you probably don't have too many options.  Why don't you call your closest dealer and ask?; they might be good guys and not charge you for programming.  (then again....)
Programming a key is simple, takes just a couple of minutes, tops.