The WB Shop online has some neat new HP stuff. I ordered the DA messenger bag and it came yesterday. I really like it! I wanted the DA shirt, but it's currently sold out. Harry Potter WB Shop
If there is a hot topic store near you, they have all the licensed WB stuff. I saw the messenger bags there, and they are cute. I also bought two DA shirts there, and a Snape friend or foe shirt-oops. I knew it would be outdated in a week when I bought it. They also had the tank tops for $12.50 each.