The longer I live in Florida the less cold weather gear I have. 
We get a lot of emails from people who ask about dressing for the cold, and I give them the same advice that I follow:  Women typically have weaker circulation, when I go out into temperatures in the 20s, I layer.  Also I get cold easily so I have to put a lot of gear on, you may not have to wear as much as I do.

For the bottom half:  1. Nylons, yes save those nylons who cares if they have a run, they are a great insulator.  2. wool or poly propylene long johns.  3. (if it’s really cold) a layer of running spandex 4.snow pants
For the top half:  1. a under-armour or similar tank top 2. wool or poly propylene long johns 3.  a tight fitting wool sweater or tight light fleece top.  4. A vest 5. an insulated water proof ski jacket. 

For the hands: I have to wear mittens, gloves do not keep my hands warm.  The great thing about some of the ski mittens is that they have built in gloves so when you pull you hand out of your mittens to blow your nose, put on chapstick, or answer the cell phone you still have a layer on.  I also stick those little heat packets in my gloves too.

For the feet:  some snow boots are rated to a particular cold temperature.  So you will know just how cold it can get before your tootsies get cold.
For walking in the snow, boots should be water proof and have a good sole.  For instance uggs are great for padding around the lodge in but are not great for walking in the snow. 
Rembember you already have panty hose on, so just wear a wool thin sock. (no bulky socks) You can always throw a heat packet in your boot. 
When wearing ski boots you can also purchase boot heaters, they are great to pop on while riding up the lift.