One I bought a time ago for my Enchantress avatar... (I needed something calm that like you said, did not bounce around like a hyperactive toddler) I got from a place called Body Language (sweet lovely cute) - Now, they are around 1k in price if not a few hundred lower, but I guess that price also depends on how old the AO is, if there are any group discounts, or current sales.
The one I wear (Fulfilment) is quite calm with a hint of confidence - it does make my avatar bend at the waist, but not in the same manner as the "come hither" (a nicer way to put it) movement. Currently it's not available on MP. It may still be in the store, but this was several months ago and I haven't been back since so it very well could not be available anymore, but do not take my word for it; go see yourself.
Mainstore: http://maps.secondlife.com/secondlife/Bon Voyage/128/93/1253
Also: It has (that I can find) NO PRE-LOADED DANCES. I'm not sure if they can be added, I haven't tried yet.