AB Sutton knows from luxury gadget cases — their customizable leather goods are what I'd buy for myself if I really wanted to spoil myself (and my iPhone).
They've refreshed their shop with some new options for both the iPhone and Kindle; the Sport Slip for the iPhone starts at $98 and is a play-thru case for the iPhone 3G with gorgeous seaming and is available to monogram.
The Kindle Cases (starting at $88) are truly mouthwatering though — can you believe that simple silver slip? I have goose bumps I want it so bad. Oh and the Kindle to slip inside it.