I was able to install and enter the game using my preorder box and key.
Created some warrior, looked at the world and it seemed to be very nice - that water is just unbeatable by any other game <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Will log in more later, now addicted to WoW.
As for character build I would make warrior / monk or warrior / necro, I guess.