how old are you becasue if you split a camera with a few friends, who is going to take it to college? splitting it just seems to make things very difficult, like who will keep it at their house, who will pay the most, ect.
also what type of filming are you going to be doing? if it is just skiing i would go with the low end 3ccd panny.
http://www.skateperception.com/reviews/reviews.php?prod=dvc30
^that is a review of the dvc 30 if that helps