Burberry Blue Label at Tachikawa Isetan
Went there last weekend and got one awesome handbag for JPY 45,150. The handbag can be turned inside out - one side is black leather, the other side is the classic checkered fabric. LOVE IT! It's like getting 2 bags at one price!
The salesgirls are very helpful. They don't speak much English but they'll go out of their way to help you out. I told them what i am looking for and how much my budget is, and they are happy to find me exactly what i need.
Bear in mind that each Burberry Blue Label outlet only carry one or two items in each store. So if you really have something in mind, go to a less popular outlet (i.e. this one in Tachikawa Isetan). If you go to the flagship store in Ginza where tourists always go to, most probably what you want will be already sold out.