The housing is in single rooms (or in suites of three to five single rooms with a common room). The cost is approximately $45 per night - half the cost of an inexpensive motel in the area.
People seeking on campus housing should send a note to email@example.com with a request for information and mention the conference (ICCS 2001 or DL 2001) and the dates in the note. The housing office will respond by sending an on-line application form. The housing office has their own financial procedures (I think they require a deposit, etc.) but they have agreed to honor requests from participants in our conferences to the extent housing remains available.
Housing on campus will simplify transportation because Stanford has a free shuttle (the Marguerite Shuttle) that goes all over the campus and to the commercial areas of Palo Alto and Menlo Park. You can access a map of the shuttle route by clicking on Visitor Information from the main ICCS 2001 web page.