If you do some PVP in Cyrodiil you can use your Alliance points (or gold) to purchase set items from the Golden Vendor in Cyrodiil. I used AP points to get the Velidreth head piece for my StamPlar (bow build). I only had to use undaunted keys to buy the shoulder piece.
So far I really like the Velidreth set with my Bow StamPlar.