Hi pinkcandy,
<p>Someone recently recommended this site to me (but I haven't tried it yet):
http://www.decentexposures.com/
<p>I also have very large breasts, and have a hard time finding bras that are big enough or supportive enough. What I have been amazed to find, since having a baby, is that nursing bras are actually much, much more supportive than regular bras, even and especially the ones without underwires. I still nurse so I still wear the nursing bras, but I may not go back to regular bras because I have finally found a bra that doesn't hurt.
<p>By the way, I think it's a good suggestion for you to ask your GP about medically-necessary reduction surgery. I have a friend who had back problems because of her large breasts, and her doctor recommended it (and it was covered by insurance because of it)... it really helped her feel much better physically.