any pointers to tours meeting my criteria?

My wife and I are considering an Antarctic cruise in Jan/Feb 2006. We'd prefer departing from New Zealand if possible. We'd like the package to include a helo, a science station visit, camping on the continent and going within the Antarctic circle. We can't go for more than two weeks though, and don't want to spend more than $10k/person. Any suggestions as to where I could find info on a tour like this? Or something close?

TIA