I know that this is a pretty old thread but I wanted to share the site that I get maggie's clothes from.
www.barkindogclothes.com They are very inexpensive, free shipping, GREAT people to do business with, and super fast. They will even put your babies name on the clothes for FREE. There has been a couple of items that I got where I had to make a small adjustment but for the money, I don't complain!! I can get 2 or 3 outfits for the price I would pay for 1 at petsmart.