Congrats on your new Pathfinder purchase. I feel your pain on those stock 16-inch wheels. As a matter of fact, I am swapping mine out for 2003 SE wheels. I think it's cleaner and more up to date looking.
While I won't be able to tell you whether those Armada wheels will fit, I just wanted to give you a friendly word of caution should you choose to get used wheels. If you do get them from Ebay or from junk yards, and if they are honest enough, try to find out whether those wheels are true. More often that not, these wheels were taken from wrecked vehicles and they could be damaged beyond the naked eye.
I thought a found a good set of used wheels, but I was later informed by the seller that two of the four were not true. I was disappointed, no doubt, but I appreciated his honesty. And yes, I got my money back.
If you do find out that those Armada wheels would fit, the best place to get them (aside from getting them new) is from the dealers. I actually called most (if not all) of the dealers in California asking for wheel take-offs. People these days are so quick to bling their rides that there are a lot of take offs from Armadas, Titans and 350Z. What's even better is that some dealers will sell you the whole set (including tires) at a ridiculously low price. And these wheels have very low miles on them because the swap is already done at the lot.
Sorry for the long email, but I hope this helped somewhat. Oh, and good luck with your wheel upgrade.
