If you're after a thrifty option, this Nanette Lepore Coat will fit the bill. It's a popular choice, while not very costly. Why not also look at this Tommy Hilfiger Coat. It's a product you'll fall in love with which also doesn't cost too much. You may also want to look at this Via Spiga Coat. This item is not expensive either, but it will make a difference in your wardrobe.
For something in the middle of the price range, look no further than this Theory Coat. This item doesn't cost too much, but definitely deserves a place in your wardrobe.