It's the most famous poster in US history-beautiful Farrah Fawcett in THAT red bathing suit, and now it's going to be a Barbie doll. And not just any Barbie-one that will raise money for cancer research. I can't help but think that Farrah would be so pleased-she was beautiful inside and out.The doll will be available as a limited edition at big retails stores, and also on