When dining with two or more women, should I move chairs for each of them?

yeah because if u only do it for one the other will think u like the other better

In my opinion... In a business situation, no. If they are all relatives, just do it for generations older than your own.

Dr. Manners says:
http://en.allexperts.com/q/Social-Etiquette-Good-2570/pushing-lady-chair.htm

It's tricky because some women don't like it, and others think a man is a barbarian if he doesn't. It's helpful if you know the ladies well enough to know their preferences. I prefer that my husband not pull out my chair because he's usually more tired than I am in the evenings and I feel like I should be pulling out a cot for him instead.