Bravissimo. Am currently wearing my brand new pink Bravissimo Millie bra and it is the nuts (I am very well endowed in that dept).
But, seriously, they have a great range of beautiful bras, fantastic help on hand (either in store or online) and they are in your price range. If you can, I'd advise getting to one of their shops, tell them what you are looking for, they will give you a load of suitable bras to try on, come and advise on fit and bingo - the only problem is that you end up coming away with loads more bras that you initially wanted as they are all so gorgeous.