Thanks for your letter to feminist.com and you caught me at the right moment--I just watched about 5 episodes of "Sex and The City." I think that "Sex and the City" presents one version of feminism--that of single, urban women, who are interested in their professions and their sex lives. This is certainly one-brand of feminism, but one problem might be that its popularity could lead people to conclude that it's the only way to be a feminist. This conclusion waters down feminism, but not the show itself. At least that's my two cents.
I hope that helps