Miranda: It sounds like you are really getting into this - cool!

I don't have much to add, except that the waterproof jacket might be bad. Good that it has pit zips, but if you sweat too much and that gets trapped, you will end up freezing! I have searched for years for something that doesn't trap moisture when it is cold out (I am a sweater, and I don't mean a knit one!). Last year I got a Swix jacket that seems to work really well. Craft is a very good brand. Both are more winter-sport specific than, say, PI. I have a couple of PI jackets (get wet & cold), a couple of Sporthill (get wet & cold), Craft (better), Swix (possibly better yet), ........ Not that PI and Sporthill wouldn't work - just not the exact jackets that I have. Something that will break the wind, but still breathe is the key. Some things that are good for biking are not that great for skiing. Then again, I don't bike in the winter.

I always wear my skiing stuff for snowshoeing, if that helps.

Good luck!