I did the same at my university.
I went through USCSA
Go there, figure out your conference. It is totally worth it. You basically get all your events planned for you and anything you do in addition is a bonus.
Its a ski and snowboard conference where there is slalom and such, but there are also pipe, slopestyle and skier cross comps which are sooooo much fun.
USC has a great website for their team http://www.uscsnowsports.org/
check out their team for ideas
Oh and you don't have to compete at all to be part of the team as long as you pay the $30 dues and what not you get access to your conferences proforms.
Ours had DC, 686, Lange, Rossignol, Lamar, Neff, and spy.... So worth it.