How much does it cost for a Nissan replacement key?

I lost my second set of keys for a 2001 Nissan Pathfinder, and need to replace them. What is the best course of action and how much will I be out?|||There are Computerized Lock-Smiths that can make a original key and an extra also introduce those new keys to the truck. That erases the old keys... Be sure if you find the old key not to use it because it can cause the truck to lock down. You can go online to purchase remotes if you need programing instructions contact me|||i recently just did make a copy of my 350z, if your key is like mine. it has a chip in the key. then you will be looking at spending 150$ and 1-2 hours to make one copy.