I've just bought an Elle Macpherson one (half price through ebay - brand new though) which is nice and quite supportive - though not as supportive as the triumph ones. If you google maternity bras there are quite a few online shops that have larger sized bras.

I know it's so frustrating - i can remember the first time i was preggy and went into target to get some and they didn't do anything bigger than a C - wtf??? most preggy people are bigger than a C!

Make sure you get ones with the droppable cups so you can use them for after bubs is born when you are feeding (i bought quite a few nice maternity ones from M & S in the Uk when i was forst preggy but without the droppable cups - what a waste!)

good luck bra shopping and with the rest of your pg

Julie x