If I have to buy Uggs that are the current style, I usually go to cozyboots dot com. They are a real Ugg dealer that does not charge tax and shipping is usually free. That's probably about the best deal you are going to get until around Thanksgiving. I would sign up for their emails anyway because when they have sales, you usually have to click on the link that they sent you.
6pm dot com is Zappo's outlet, but they will only have the discontinued stuff. I would stay away from OnlineShoes-they sent me used Uggs twice so I won't order from them anymore.