Hey hun... I'm not sure how much your looking to spend... But I've found a couple of really cute ones.
1st, (My dream diaper bag!) Juicy Couture bag, comes in pink/brown, black/cream, or blue/red. Its cute because it looks similar to the Juicy purses, and not too much like a diaper bag. Its $300 tho!! I fell in love with it at Valley Fair Mall. Then I realized how $300 can really go toward something else, so I walked away...
Also, Juicy came out with these new beach totes for the summer, and they are big, and aren't diaper bags, but they are still like $100.
And, the most practical one I've found, is a really cute one at Babies R Us, and its only $25!!! Heres a pic of the few different colors they have. I loved this cause everything I have is pink/brown, and this one came in pink and brown. Heres the links..
https://www.toysrus.com/product/index.jsp?productId=2904250
https://www.toysrus.com/product/index.jsp?productId=2904253
https://www.toysrus.com/product/index.jsp?productId=2904252
https://www.toysrus.com/product/index.jsp?productId=2904251