Gingham Tops from yoox.com
If you're looking for an affordable item, this Laurence Dolige Dress Shirt will fit the bill. It's a popular choice, while not very costly. Another strong contender for your wardrobe is this Button-Front Shirt. While the price of this product is not very high, it will surely attract a lot of attention.
If you're looking for an item in the middle of the price range, look no further than this Classic Shirt. This item doesn't cost the earth, but absolutely invaluable in your wardrobe.
If you can afford it, then you absolutely must check out this Prada Oxford Shirt. This piece seems costly, but it's well worth it.