If you're not planning on spending much, these Free People Jeans will fit the bill. It's a fail-safe choice, while not very costly. Another strong contender for your wardrobe is these Joe's Jeans Jeans. While the price of this product is not too high, it will certainly attract a lot of attention. You may also want to look at these Sanctuary Jeans. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for something in between pricewise, look at these Paige Jeans. While the price is very reasonable, this piece is an easy wardrobe update. You might also want to take a look at these Joe's Jeans Jeans. It's an attractive option both price and quality-wise. Alternatively, opting for these Good American Jeans is a nice choice as well!