One thing could be to see if it is possible to contact your roommate in advance. Some colleges provide phone numbers and email addresses to roommates. If you could talk to that person, and feel them out as far as video games go, it might be helpful. If they seem to love gaming, and seem like they would respect your stuff, it might be fun to bring the N64. Who knows, she might bring her Wii!
Is the college anywhere near your home? If it's close, you could leave your systems at home at first and pick them up when you go on a break, or even on a weekend. If it's a ways away, that might not be the best answer.
