If you are on a tight budget, this Kimono will fit the bill. It's a popular choice, while not very expensive. Another good option is this Patchington Kimono. While the price is not very high, be sure that this piece will become a valuable addition to your wardrobe.
If you're gonna splurge, then you absolutely must check out this RD Style Kimono. This product seems expensive, but it's worth it.