My sister went to a bra shop that sold only custom made bras. The gal took numerous measurements. My sis was called back for a fitting and was over the moon. It was pricey but the quality was top notch and she was so happy with it. The fitter would also make house calls.
I may have to go that route eventually. I'm tiny around with big boobs (not as much of a blessing as you might think!) and have a horrid time bra shopping! Anything cute doesn't fit quite right and anything that fits perfectly is frumpy or costs a fortune.
Not all people feel the same way but I feel prettier knowing I'm wearing cute undies than when I'm not. Curse you, 20-year-old pocketbook!