Absolutley!
If you've got two OEM type keys, you can program in additional ones yourself, makes keys about a $10 each event.
If not, you can get your current key cloned at most key cutting stations, usually about $50 to $60.
Oddly enough, additional keys at the dealer are often less than the clones, but that might be location dependent. Your local Ford dealer might, or might not have competitive pricing.