I just visited Tinkerbellscloset to see what they have. Very cute!
But wow...expensive. If you are planning to expand your little one's wardrobe...and you want to find some stuff that is a little more reasonable...try these. I've been very happy with the fit and quality of the tee-shirts that I've gotten from both of these sites. I imagine their dresses are high quality too.
http://www.barkindogclothes.com/index.html http://ziggysboutique.homestead.com/shop.html