Bras 'N Things (BNT) is the only place that actually could fit a bra comfortably on me. Their staff are friendly and helpful, and are willing to let you try on as much as you like even if you don't buy. They allow you to layby (usual 8 weeks) which is very hard to come by these days. The fact that they regularly have sales, and sell a wide range of products in every budget range is a real plus. Honestly one of the best bra shops I have been to.

Approximate cost: $60