If you are on a tight budget, this Nordstrom Oxford Shirt will fit the bill. It's a popular choice, while not very expensive. Another good option is this Nautica Classic Shirt. While the price is not too high, be sure that this product will become a wonderful addition to your wardrobe. You might also want to consider this Dress Shirt. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
For something in the middle of the price range, consider choosing this Dress Shirt. While the price is very reasonable, this piece is an easy wardrobe update. It's also worth considering this MSGM Oxford Shirt. This piece is extremely popular and, just as importantly, not too pricey. Consider this Paul Smith Dress Shirt too! Great value for your money.