I'm not the biggest SJP fan, but I did like some of the outfits she wore in SATC and I think they did fantastically well to make the character a strong fashion influence of the time.
I just bought Sex & the City CDs so I could watch them over and over but I accidentally bought the older ones which sucks, i think the first episodes were the best....prior to Miranda having a baby etc. where it gets a bit too serious...but overall huge fan