Ultralight clothing

Isaac, check out some of the gear lists of the members and some of the trip reports from BPL. I know there have been threads about clothing and temp ratings in the past, they are probably just hard to find – try using google. That should give you a good start.
HTH

danke

I use nearly all the same clothing in winter as I use in summer–just add more layers in between! You need to be able to fine-tune your clothing level so that you don't sweat when you're hiking and so you don't get chilled when you stop. Several thin layers do this job far better than one heavy layer. I liken it to peeling an onion and then putting the layers back–but without crying. It's very much an individual thing, though–some people stay hot, some get cold easily, some sweat profusely, others don't. You're going to have to experiment to find out what works for your own physiology.

For your winter clothing questions, let me refer you to the single best resource I've seen on the subject: "Allen & Mike`s Really Cool Backcountry Ski Book". This incredible book is not just for backcountry skiers. It contains a wealth of information on wintertime clothing systems and camping techniques etc, etc, etc in an engaging format with no superfluous information. If you peruse this book for 2 minutes, I doubt you'll be able to leave the store without it–best of all it's very inexpensive.