There was a E3 event, a public preview event, and then 3 beta events for pre-registers only (but certain magazines etc had keys as well), this is the last beta weekend, game ships around feb 2. It's a mission based mmorpg without monthly payment
Downloads while you play, when going to a mission etc. The engin uses highly compressed files so the downloads are almost zippo. If you still want to try it today or tomorrow heres another key
Your unique Guild Wars key is 9932N-83KP3-64G1L-6L84D-9FBND