I don't have a Kate Spade bag, but they've been recommended to me several times. There are some nice ones on HauteLook (my invite link) right now from $160-$190, which seem like decent prices. They have clothes, shoes, accessories, etc. from Kate Spade on sale as well.
Illamasqua nail polish is also on HauteLook today, and so is Alterna haircare, if you're into those things.