I'm 5'5" and 140 lbs. I am happy with my weight, though I wouldn't mind losing maybe ten pounds.
I was 120 lbs right up until November 1998. I got married then, and somehow, gained twnety pounds. Don't really know when it happened, but why is easy...I am in a contented relationship, and my husband loves to cook. In fact, I don't think I ever really ate until I met.
But really, I think 140 looks pretty good on me, I am curvy and shapey. I wear a size six or eight. The only thing I would change if I could is the little bit of belly that I have...but then, that has always been there.
BTW, my best friend (who was 5' 3" and about 300lbs at the time) did get nearly stuck in a turnstile at Disney. She's now doing the South Beach diet, and has lost something like 15 inches from her waist. South Beach seems to be a good alternative to Atkins for some people.