If you are on a budget, these UGG Australia Uggs will fit the bill. It's a popular choice, while not very expensive. Another strong contender for your wardrobe is these Suicoke Uggs. While the price of this product is competitive, it will surely attract a lot of attention. You might also want to consider these Ash Uggs. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you want to treat yourself, then what you're looking for is these Y/Project Uggs. It's more expensive but worth your money. Another product we're drooling over is these Moncler Uggs. It's pricey but you get what you pay for. You might also want to look at these Doublet Uggs. You won't regret the money spent!