Just how much are Sex and the City fans willing to pay for The Ultimate movie-going experience? The NY Post reports that one woman laid down $19,000 for a seat at tonight's premiere, only to find out she'd been scammed. Ella Sherman, who flew in from Singapore for the big night, will still get a seat at the premiere thanks to New Line Cinemas, but, you see, "It was the after-party that was the big......