no you don't have to stay in dorm even if you start from the beginning. you can come to Brookings airport, which is very small. usually people come to sioux falls airport which is an hour drive from SDSU. even then guys will be there to pick you up. regarding, on-campus job you will get one. most of the guys get through connections of earlier nepali, and they will help in full front. why don't you go to their webpage http://studentorgs.sdstate.org/nesa/members.html and contact one of the members. esp exe. committee members.