There was a really good X-Files episode back in the day with the same kind of story, that might be worth tracking down.
But yeah, definitely agree about the Antarctic setting. It's probably my favorite horror movie setting of all time, and it was never used better than in this movie. The sense of isolation is palpable. For all intents and purposes, they might as well be on an alien planet.
When I was in McMurdo back in the late '90's, the wait list for that particular videotape to borrow/rent it for the night was somewhere on the order of MONTHS.
Yes, definitely an awesome film.