If you aren’t in the Oasis Odille demographic and your measurements escape the narrow sizing of mall stores, Wolf Lingerie has a product line that might interest you. It is called Sans Complexe. Currently, Sans-Complexe has five collections: Knit, Lace, Embroidery, Guipure, Special Operations.
Wolf Lingerie was also established in 1947, and is now a 50m (UK) business. Headed by Rémy Wolf, it employs around 120 people in its design, sales and export departments in Alsace, as well as a staff of over 35 at its research and development office in Hong Kong. Wolf Lingerie also manufactures brands Billet Doux and Rosy, while its private label division produces collections for some of the biggest names in the market. (From Lingerie Buyer February 2007)
As you can tell, this is an elegant line for fuller figured women that would compare favorably to the lines from Marie Jo / Prima Donna that have recently embraced an extended sizing scheme in cup, back, and waist.
If you live in France, you may have access to this brand, but outside of France, you are probably stuck looking at Ebay. Add a comment if you know of online retailers.