How lucky for you!!! This sounds like a wonderful adventure.

As for your clothes, I might suggest REI. http://www.rei.com It is a huge, well-respected sports outfitter. They will be able to help out with anything on your list. Also, we haven't been to Antarctica, but we do hike in very cold climes sometimes, and I always use a cool-max liner Cool max is the brand name - but the material wicks away perspiration from the skin. That, combined with a pair of "smart wool" hiking socks always keeps my tootsies nice and toasty!

Good luck and have a wonderful time! Susie Newton, MA