MIMI SWARTZ is an executive editor at "Texas Monthly" and won a National Magazine Award in the public interest category in 1996. She has been a staff writer for "The New Yorker" and "Talk," and has written for the" New York Times," "Vanity Fair," and "Esquire," She lives in Houston with her husband and son. SHERRON WATKINS is a former Arthur Andersen accountant who joined Enron in 1993, working for the man who later became CFO, Andy Fastow. She worked in Enron's finance group, its International company, and its Broadband division, before returning to work for Fastow as a vice president in